Abstract

In this work, it has been demonstrated that in order to fully understand the terahertz (THz) pulse generation process during femtosecond laser filamentation, the interaction between THz wave and air plasma has to be taken into account. This interaction is mainly associated with the spatial confinement of the THz pulse by the plasma column, which could be described by the one-dimensional negative dielectric (1DND) waveguide model. By combining the 1DND model with the conventional four-wave mixing (4WM) and photocurrent (PC) models, the variation of THz spectral amplitude and width obtained in experiments could be better understood. Finally, a three-step procedure, with 1DND bridging 4WM and PC processes, has been established for the first time to describe the underlying mechanism of THz radiation from plasma sources.

© 2018 Chinese Laser Press

Full Article  |  PDF Article
OSA Recommended Articles
Terahertz modulation induced by filament interaction

Boqu He, Junyi Nan, Min Li, Shuai Yuan, and Heping Zeng
Opt. Lett. 42(5) 967-970 (2017)

Generation of largely elliptically polarized terahertz radiation from laser-induced plasma

Honggeng Wang, Na Li, Ya Bai, Peng Liu, Zhanshan Wang, and Chengpu Liu
Opt. Express 25(25) 30987-30995 (2017)

Polarization of terahertz radiation from laser generated plasma filaments

Daniel Dietze, Juraj Darmo, Stefan Roither, Audrius Pugzlys, James N. Heyman, and Karl Unterrainer
J. Opt. Soc. Am. B 26(11) 2016-2027 (2009)

References

  • View by:
  • |
  • |
  • |

  1. M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1, 97–105 (2007).
    [Crossref]
  2. M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
    [Crossref]
  3. S. Wu, J. Liu, S. Wang, and Y. Zeng, “Influence of optical wavelength on terahertz radiation from laser-induced air plasma,” Chin. Opt. Lett. 11, 101402 (2013).
  4. T. Bartel, P. Gaal, K. Reimann, M. Woerner, and T. Elsaesser, “Generation of single-cycle THz transients with high electric-field amplitudes,” Opt. Lett. 30, 2805–2807 (2005).
    [Crossref]
  5. A. Houard, Y. Liu, B. Prade, and A. Mysyrowicz, “Polarization analysis of terahertz radiation generated by four-wave mixing in air,” Opt. Lett. 33, 1195–1197 (2008).
    [Crossref]
  6. Y. Minami, T. Kurihara, K. Yamaguchi, and T. Suemoto, “High-power THz wave generation in plasma induced by polarization adjusted two-color laser pulses,” Appl. Phys. Lett. 102, 041105 (2013).
    [Crossref]
  7. D. Dietze, J. Darmo, S. Roither, A. Pugzlys, J. N. Heyman, and K. Unterrainer, “Polarization of terahertz radiation from laser generated plasma filaments,” J. Opt. Soc. Am. B 26, 2016–2027 (2009).
    [Crossref]
  8. J. Dai, N. Karpowicz, and X. C. Zhang, “Coherent polarization control of terahertz waves generated from two-color laser-induced gas plasma,” Phys. Rev. Lett. 103, 023001 (2009).
    [Crossref]
  9. X. Xie, J. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
    [Crossref]
  10. K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
    [Crossref]
  11. K. Y. Kim, J. H. Glownia, A. J. Taylor, and G. Rodriguez, “Terahertz emission from ultrafast ionizing air in symmetry-broken laser fields,” Opt. Express 15, 4577–4584 (2007).
    [Crossref]
  12. M. Kress, T. Löffler, S. Eden, M. Thomson, and H. G. Roskos, “Terahertz-pulse generation by photoionization of air with laser pulses composed of both fundamental and second-harmonic waves,” Opt. Lett. 29, 1120–1122 (2004).
    [Crossref]
  13. Y. Liu, A. Houard, M. Durand, B. Prade, and A. Mysyrowicz, “Maker fringes in the terahertz radiation produced by a 2-color laser field in air,” Opt. Express 17, 11480–11485 (2009).
    [Crossref]
  14. D. J. Cook and R. M. Hochstrasser, “Intense terahertz pulses by four-wave rectification in air,” Opt. Lett. 25, 1210–1212 (2000).
    [Crossref]
  15. F. Blanchard, G. Sharma, X. Ropagnol, L. Razzari, R. Morandotti, and T. Ozaki, “Improved terahertz two-color plasma sources pumped by high intensity laser beam,” Opt. Express 17, 6044–6052 (2009).
    [Crossref]
  16. Y. S. You, T. I. Oh, and K. Y. Kim, “Mechanism of elliptically polarized terahertz generation in two-color laser filamentation,” Opt. Lett. 38, 1034–1036 (2013).
    [Crossref]
  17. C. D’Amico, A. Houard, M. Franco, B. Prade, A. Mysyrowicz, A. Couairon, and V. T. Tikhonchuk, “Conical forward THz emission from femtosecond-laser-beam filamentation in air,” Phys. Rev. Lett. 98, 235002 (2007).
    [Crossref]
  18. Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
    [Crossref]
  19. Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
    [Crossref]
  20. Y. Zhang, Y. Chen, S. Xu, H. Lian, M. Wang, W. Liu, S. L. Chin, and G. Mu, “Portraying polarization state of terahertz pulse generated by a two-color laser field in air,” Opt. Lett. 34, 2841–2843 (2009).
    [Crossref]
  21. Y. Chen, C. Marceau, S. Génier, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission through four-wave mixing in a two-color filament in air,” Opt. Commun. 282, 4283–4287 (2009).
    [Crossref]
  22. H. Zhong, N. Karpowicz, and X. C. Zhang, “Terahertz emission profile from laser-induced air plasma,” Appl. Phys. Lett. 88, 261103 (2006).
    [Crossref]
  23. Y. S. You, T. I. Oh, and K. Y. Kim, “Off-axis phase-matched terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. Lett. 109, 183902 (2012).
    [Crossref]
  24. I. Babushkin, S. Skupin, A. Husakou, C. Koehler, E. Cabrera-Granado, L. Berge, and J. Herrmann, “Tailoring terahertz radiation by controlling tunnel photoionization events in gases,” New J. Phys. 13, 123029 (2011).
    [Crossref]
  25. H. G. Roskos, M. D. Thomson, M. Kreß, and A. T. Löffler, “Broadband THz emission from gas plasmas induced by femtosecond optical pulses: from fundamentals to applications,” Laser Photon. Rev. 1, 349–368 (2007).
    [Crossref]
  26. V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
    [Crossref]
  27. J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
    [Crossref]
  28. K. Y. Kim, “Generation of coherent terahertz radiation in ultrafast laser-gas interactions,” Phys. Plasmas 16, 056706 (2009).
    [Crossref]
  29. S. Xu, Y. Zhang, W. Liu, and S. L. Chin, “Experimental confirmation of high-stability of fluorescence in a femtosecond laser filament in air,” Opt. Commun. 282, 4800–4804 (2009).
    [Crossref]
  30. J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
    [Crossref]
  31. A. Gorodetsky, A. D. Koulouklidis, M. Massaouti, and S. Tzortzakis, “Physics of the conical broadband terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. A 89, 033838 (2014).
    [Crossref]
  32. P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
    [Crossref]
  33. A. Houard, Y. Liu, B. Prade, V. T. Tikhonchuk, and A. Mysyrowicz, “Strong enhancement of terahertz radiation from laser filaments in air by a static electric field,” Phys. Rev. Lett. 100, 255006 (2008).
    [Crossref]
  34. J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
    [Crossref]
  35. L. Bergé, S. Skupin, C. Köhler, I. Babushkin, and J. Herrmann, “3D numerical simulations of THz generation by two-color laser filaments,” Phys. Rev. Lett. 110, 073901 (2013).
    [Crossref]
  36. P. G. de Alaiza Martínez, X. Davoine, A. Debayle, L. Gremillet, and L. Bergé, “Terahertz radiation driven by two-color laser pulses at near-relativistic intensities: competition between photoionization and wakefield effects,” Sci. Rep. 6, 26743 (2016).
    [Crossref]
  37. Handbook of Optics, 2nd ed. (McGraw-Hill, 1994), Vol. 2.
  38. W. J. Smith, Modern Optical Engineering, 3rd ed. (McGraw-Hill, 2000).
  39. T. I. Oh, Y. S. You, and K. Y. Kim, “Two-dimensional plasma current and optimized terahertz generation in two-color photoionization,” Opt. Express 20, 19778–19786 (2012).
    [Crossref]
  40. R. W. Boyd, Nonlinear Optics (Academic, 2003).
  41. N. Aközbek, A. Iwasaki, A. Becker, M. Scalora, S. L. Chin, and C. M. Bowden, “Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses,” Phys. Rev. Lett. 89, 143901 (2002).
    [Crossref]
  42. J. Takahara, “Negative dielectric optical waveguides for nano-optical guiding,” in Plasmonic Nanoguides and Circuits, S. I. Bozhevolnyi, ed. (Pan Stanford Publishing, 2008), pp. 46–47.
  43. A. Nguyen, P. G. de Alaiza Martínez, I. Thiele, S. Skupin, and L. Berge, “THz field engineering in two-color femtosecond filaments using chirped and delayed laser pulses,” New J. Phys. (accepted), doi: 10.1088/1367-2630/aaa470.
    [Crossref]
  44. A. Nguyen, P. G. de Alaiza Martinez, J. Déchard, I. Thiele, I. Babushkin, S. Skupin, and L. Bergé, “Spectral dynamics of THz pulses generated by two-color laser filaments in air: the role of Kerr nonlinearities and pump wavelength,” Opt. Express 25, 4720–4740 (2017).
    [Crossref]
  45. E. Cabrera-Granado, Y. Chen, I. Babushkin, L. Bergé, and S. Skupin, “Spectral self-action of THz emission from ionizing two-color laser pulses in gases,” New J. Phys. 17, 023060 (2015).
    [Crossref]

2017 (1)

2016 (3)

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

P. G. de Alaiza Martínez, X. Davoine, A. Debayle, L. Gremillet, and L. Bergé, “Terahertz radiation driven by two-color laser pulses at near-relativistic intensities: competition between photoionization and wakefield effects,” Sci. Rep. 6, 26743 (2016).
[Crossref]

2015 (1)

E. Cabrera-Granado, Y. Chen, I. Babushkin, L. Bergé, and S. Skupin, “Spectral self-action of THz emission from ionizing two-color laser pulses in gases,” New J. Phys. 17, 023060 (2015).
[Crossref]

2014 (3)

J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
[Crossref]

J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
[Crossref]

A. Gorodetsky, A. D. Koulouklidis, M. Massaouti, and S. Tzortzakis, “Physics of the conical broadband terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. A 89, 033838 (2014).
[Crossref]

2013 (6)

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

L. Bergé, S. Skupin, C. Köhler, I. Babushkin, and J. Herrmann, “3D numerical simulations of THz generation by two-color laser filaments,” Phys. Rev. Lett. 110, 073901 (2013).
[Crossref]

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

S. Wu, J. Liu, S. Wang, and Y. Zeng, “Influence of optical wavelength on terahertz radiation from laser-induced air plasma,” Chin. Opt. Lett. 11, 101402 (2013).

Y. Minami, T. Kurihara, K. Yamaguchi, and T. Suemoto, “High-power THz wave generation in plasma induced by polarization adjusted two-color laser pulses,” Appl. Phys. Lett. 102, 041105 (2013).
[Crossref]

Y. S. You, T. I. Oh, and K. Y. Kim, “Mechanism of elliptically polarized terahertz generation in two-color laser filamentation,” Opt. Lett. 38, 1034–1036 (2013).
[Crossref]

2012 (2)

T. I. Oh, Y. S. You, and K. Y. Kim, “Two-dimensional plasma current and optimized terahertz generation in two-color photoionization,” Opt. Express 20, 19778–19786 (2012).
[Crossref]

Y. S. You, T. I. Oh, and K. Y. Kim, “Off-axis phase-matched terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. Lett. 109, 183902 (2012).
[Crossref]

2011 (1)

I. Babushkin, S. Skupin, A. Husakou, C. Koehler, E. Cabrera-Granado, L. Berge, and J. Herrmann, “Tailoring terahertz radiation by controlling tunnel photoionization events in gases,” New J. Phys. 13, 123029 (2011).
[Crossref]

2009 (8)

Y. Zhang, Y. Chen, S. Xu, H. Lian, M. Wang, W. Liu, S. L. Chin, and G. Mu, “Portraying polarization state of terahertz pulse generated by a two-color laser field in air,” Opt. Lett. 34, 2841–2843 (2009).
[Crossref]

Y. Chen, C. Marceau, S. Génier, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission through four-wave mixing in a two-color filament in air,” Opt. Commun. 282, 4283–4287 (2009).
[Crossref]

K. Y. Kim, “Generation of coherent terahertz radiation in ultrafast laser-gas interactions,” Phys. Plasmas 16, 056706 (2009).
[Crossref]

S. Xu, Y. Zhang, W. Liu, and S. L. Chin, “Experimental confirmation of high-stability of fluorescence in a femtosecond laser filament in air,” Opt. Commun. 282, 4800–4804 (2009).
[Crossref]

Y. Liu, A. Houard, M. Durand, B. Prade, and A. Mysyrowicz, “Maker fringes in the terahertz radiation produced by a 2-color laser field in air,” Opt. Express 17, 11480–11485 (2009).
[Crossref]

D. Dietze, J. Darmo, S. Roither, A. Pugzlys, J. N. Heyman, and K. Unterrainer, “Polarization of terahertz radiation from laser generated plasma filaments,” J. Opt. Soc. Am. B 26, 2016–2027 (2009).
[Crossref]

J. Dai, N. Karpowicz, and X. C. Zhang, “Coherent polarization control of terahertz waves generated from two-color laser-induced gas plasma,” Phys. Rev. Lett. 103, 023001 (2009).
[Crossref]

F. Blanchard, G. Sharma, X. Ropagnol, L. Razzari, R. Morandotti, and T. Ozaki, “Improved terahertz two-color plasma sources pumped by high intensity laser beam,” Opt. Express 17, 6044–6052 (2009).
[Crossref]

2008 (5)

A. Houard, Y. Liu, B. Prade, and A. Mysyrowicz, “Polarization analysis of terahertz radiation generated by four-wave mixing in air,” Opt. Lett. 33, 1195–1197 (2008).
[Crossref]

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
[Crossref]

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

A. Houard, Y. Liu, B. Prade, V. T. Tikhonchuk, and A. Mysyrowicz, “Strong enhancement of terahertz radiation from laser filaments in air by a static electric field,” Phys. Rev. Lett. 100, 255006 (2008).
[Crossref]

2007 (4)

H. G. Roskos, M. D. Thomson, M. Kreß, and A. T. Löffler, “Broadband THz emission from gas plasmas induced by femtosecond optical pulses: from fundamentals to applications,” Laser Photon. Rev. 1, 349–368 (2007).
[Crossref]

C. D’Amico, A. Houard, M. Franco, B. Prade, A. Mysyrowicz, A. Couairon, and V. T. Tikhonchuk, “Conical forward THz emission from femtosecond-laser-beam filamentation in air,” Phys. Rev. Lett. 98, 235002 (2007).
[Crossref]

K. Y. Kim, J. H. Glownia, A. J. Taylor, and G. Rodriguez, “Terahertz emission from ultrafast ionizing air in symmetry-broken laser fields,” Opt. Express 15, 4577–4584 (2007).
[Crossref]

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1, 97–105 (2007).
[Crossref]

2006 (2)

X. Xie, J. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
[Crossref]

H. Zhong, N. Karpowicz, and X. C. Zhang, “Terahertz emission profile from laser-induced air plasma,” Appl. Phys. Lett. 88, 261103 (2006).
[Crossref]

2005 (1)

2004 (1)

2002 (1)

N. Aközbek, A. Iwasaki, A. Becker, M. Scalora, S. L. Chin, and C. M. Bowden, “Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses,” Phys. Rev. Lett. 89, 143901 (2002).
[Crossref]

2000 (1)

Aközbek, N.

N. Aközbek, A. Iwasaki, A. Becker, M. Scalora, S. L. Chin, and C. M. Bowden, “Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses,” Phys. Rev. Lett. 89, 143901 (2002).
[Crossref]

Andreeva, V. A.

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Babushkin, I.

A. Nguyen, P. G. de Alaiza Martinez, J. Déchard, I. Thiele, I. Babushkin, S. Skupin, and L. Bergé, “Spectral dynamics of THz pulses generated by two-color laser filaments in air: the role of Kerr nonlinearities and pump wavelength,” Opt. Express 25, 4720–4740 (2017).
[Crossref]

E. Cabrera-Granado, Y. Chen, I. Babushkin, L. Bergé, and S. Skupin, “Spectral self-action of THz emission from ionizing two-color laser pulses in gases,” New J. Phys. 17, 023060 (2015).
[Crossref]

L. Bergé, S. Skupin, C. Köhler, I. Babushkin, and J. Herrmann, “3D numerical simulations of THz generation by two-color laser filaments,” Phys. Rev. Lett. 110, 073901 (2013).
[Crossref]

I. Babushkin, S. Skupin, A. Husakou, C. Koehler, E. Cabrera-Granado, L. Berge, and J. Herrmann, “Tailoring terahertz radiation by controlling tunnel photoionization events in gases,” New J. Phys. 13, 123029 (2011).
[Crossref]

Bartel, T.

Becker, A.

N. Aközbek, A. Iwasaki, A. Becker, M. Scalora, S. L. Chin, and C. M. Bowden, “Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses,” Phys. Rev. Lett. 89, 143901 (2002).
[Crossref]

Berge, L.

I. Babushkin, S. Skupin, A. Husakou, C. Koehler, E. Cabrera-Granado, L. Berge, and J. Herrmann, “Tailoring terahertz radiation by controlling tunnel photoionization events in gases,” New J. Phys. 13, 123029 (2011).
[Crossref]

A. Nguyen, P. G. de Alaiza Martínez, I. Thiele, S. Skupin, and L. Berge, “THz field engineering in two-color femtosecond filaments using chirped and delayed laser pulses,” New J. Phys. (accepted), doi: 10.1088/1367-2630/aaa470.
[Crossref]

Bergé, L.

A. Nguyen, P. G. de Alaiza Martinez, J. Déchard, I. Thiele, I. Babushkin, S. Skupin, and L. Bergé, “Spectral dynamics of THz pulses generated by two-color laser filaments in air: the role of Kerr nonlinearities and pump wavelength,” Opt. Express 25, 4720–4740 (2017).
[Crossref]

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

P. G. de Alaiza Martínez, X. Davoine, A. Debayle, L. Gremillet, and L. Bergé, “Terahertz radiation driven by two-color laser pulses at near-relativistic intensities: competition between photoionization and wakefield effects,” Sci. Rep. 6, 26743 (2016).
[Crossref]

E. Cabrera-Granado, Y. Chen, I. Babushkin, L. Bergé, and S. Skupin, “Spectral self-action of THz emission from ionizing two-color laser pulses in gases,” New J. Phys. 17, 023060 (2015).
[Crossref]

L. Bergé, S. Skupin, C. Köhler, I. Babushkin, and J. Herrmann, “3D numerical simulations of THz generation by two-color laser filaments,” Phys. Rev. Lett. 110, 073901 (2013).
[Crossref]

Blanchard, F.

Bowden, C. M.

N. Aközbek, A. Iwasaki, A. Becker, M. Scalora, S. L. Chin, and C. M. Bowden, “Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses,” Phys. Rev. Lett. 89, 143901 (2002).
[Crossref]

Boyd, R. W.

R. W. Boyd, Nonlinear Optics (Academic, 2003).

Cabrera-Granado, E.

E. Cabrera-Granado, Y. Chen, I. Babushkin, L. Bergé, and S. Skupin, “Spectral self-action of THz emission from ionizing two-color laser pulses in gases,” New J. Phys. 17, 023060 (2015).
[Crossref]

I. Babushkin, S. Skupin, A. Husakou, C. Koehler, E. Cabrera-Granado, L. Berge, and J. Herrmann, “Tailoring terahertz radiation by controlling tunnel photoionization events in gases,” New J. Phys. 13, 123029 (2011).
[Crossref]

Caspani, L.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

Châteauneuf, M.

Y. Chen, C. Marceau, S. Génier, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission through four-wave mixing in a two-color filament in air,” Opt. Commun. 282, 4283–4287 (2009).
[Crossref]

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
[Crossref]

Chen, Y.

E. Cabrera-Granado, Y. Chen, I. Babushkin, L. Bergé, and S. Skupin, “Spectral self-action of THz emission from ionizing two-color laser pulses in gases,” New J. Phys. 17, 023060 (2015).
[Crossref]

Y. Zhang, Y. Chen, S. Xu, H. Lian, M. Wang, W. Liu, S. L. Chin, and G. Mu, “Portraying polarization state of terahertz pulse generated by a two-color laser field in air,” Opt. Lett. 34, 2841–2843 (2009).
[Crossref]

Y. Chen, C. Marceau, S. Génier, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission through four-wave mixing in a two-color filament in air,” Opt. Commun. 282, 4283–4287 (2009).
[Crossref]

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
[Crossref]

Cheng, Y.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
[Crossref]

J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
[Crossref]

Chin, S. L.

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Y. Chen, C. Marceau, S. Génier, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission through four-wave mixing in a two-color filament in air,” Opt. Commun. 282, 4283–4287 (2009).
[Crossref]

S. Xu, Y. Zhang, W. Liu, and S. L. Chin, “Experimental confirmation of high-stability of fluorescence in a femtosecond laser filament in air,” Opt. Commun. 282, 4800–4804 (2009).
[Crossref]

Y. Zhang, Y. Chen, S. Xu, H. Lian, M. Wang, W. Liu, S. L. Chin, and G. Mu, “Portraying polarization state of terahertz pulse generated by a two-color laser field in air,” Opt. Lett. 34, 2841–2843 (2009).
[Crossref]

Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
[Crossref]

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

N. Aközbek, A. Iwasaki, A. Becker, M. Scalora, S. L. Chin, and C. M. Bowden, “Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses,” Phys. Rev. Lett. 89, 143901 (2002).
[Crossref]

Chu, W.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
[Crossref]

J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
[Crossref]

Clerici, M.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

Cook, D. J.

Couairon, A.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

C. D’Amico, A. Houard, M. Franco, B. Prade, A. Mysyrowicz, A. Couairon, and V. T. Tikhonchuk, “Conical forward THz emission from femtosecond-laser-beam filamentation in air,” Phys. Rev. Lett. 98, 235002 (2007).
[Crossref]

D’Amico, C.

C. D’Amico, A. Houard, M. Franco, B. Prade, A. Mysyrowicz, A. Couairon, and V. T. Tikhonchuk, “Conical forward THz emission from femtosecond-laser-beam filamentation in air,” Phys. Rev. Lett. 98, 235002 (2007).
[Crossref]

Dai, J.

J. Dai, N. Karpowicz, and X. C. Zhang, “Coherent polarization control of terahertz waves generated from two-color laser-induced gas plasma,” Phys. Rev. Lett. 103, 023001 (2009).
[Crossref]

X. Xie, J. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
[Crossref]

Darmo, J.

Davoine, X.

P. G. de Alaiza Martínez, X. Davoine, A. Debayle, L. Gremillet, and L. Bergé, “Terahertz radiation driven by two-color laser pulses at near-relativistic intensities: competition between photoionization and wakefield effects,” Sci. Rep. 6, 26743 (2016).
[Crossref]

de Alaiza Martinez, P. G.

de Alaiza Martínez, P. G.

P. G. de Alaiza Martínez, X. Davoine, A. Debayle, L. Gremillet, and L. Bergé, “Terahertz radiation driven by two-color laser pulses at near-relativistic intensities: competition between photoionization and wakefield effects,” Sci. Rep. 6, 26743 (2016).
[Crossref]

A. Nguyen, P. G. de Alaiza Martínez, I. Thiele, S. Skupin, and L. Berge, “THz field engineering in two-color femtosecond filaments using chirped and delayed laser pulses,” New J. Phys. (accepted), doi: 10.1088/1367-2630/aaa470.
[Crossref]

Debayle, A.

P. G. de Alaiza Martínez, X. Davoine, A. Debayle, L. Gremillet, and L. Bergé, “Terahertz radiation driven by two-color laser pulses at near-relativistic intensities: competition between photoionization and wakefield effects,” Sci. Rep. 6, 26743 (2016).
[Crossref]

Déchard, J.

Dietze, D.

Dubois, J.

Y. Chen, C. Marceau, S. Génier, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission through four-wave mixing in a two-color filament in air,” Opt. Commun. 282, 4283–4287 (2009).
[Crossref]

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
[Crossref]

Durand, M.

Eden, S.

Elsaesser, T.

Esaulkov, M. N.

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Faccio, D.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

Franco, M.

C. D’Amico, A. Houard, M. Franco, B. Prade, A. Mysyrowicz, A. Couairon, and V. T. Tikhonchuk, “Conical forward THz emission from femtosecond-laser-beam filamentation in air,” Phys. Rev. Lett. 98, 235002 (2007).
[Crossref]

Gaal, P.

Génier, S.

Y. Chen, C. Marceau, S. Génier, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission through four-wave mixing in a two-color filament in air,” Opt. Commun. 282, 4283–4287 (2009).
[Crossref]

Giguère, M.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

Glownia, J. H.

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

K. Y. Kim, J. H. Glownia, A. J. Taylor, and G. Rodriguez, “Terahertz emission from ultrafast ionizing air in symmetry-broken laser fields,” Opt. Express 15, 4577–4584 (2007).
[Crossref]

Gong, C.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

González de Alaiza Martínez, P.

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Gorodetsky, A.

A. Gorodetsky, A. D. Koulouklidis, M. Massaouti, and S. Tzortzakis, “Physics of the conical broadband terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. A 89, 033838 (2014).
[Crossref]

Gremillet, L.

P. G. de Alaiza Martínez, X. Davoine, A. Debayle, L. Gremillet, and L. Bergé, “Terahertz radiation driven by two-color laser pulses at near-relativistic intensities: competition between photoionization and wakefield effects,” Sci. Rep. 6, 26743 (2016).
[Crossref]

Guo, L.

J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
[Crossref]

Herrmann, J.

L. Bergé, S. Skupin, C. Köhler, I. Babushkin, and J. Herrmann, “3D numerical simulations of THz generation by two-color laser filaments,” Phys. Rev. Lett. 110, 073901 (2013).
[Crossref]

I. Babushkin, S. Skupin, A. Husakou, C. Koehler, E. Cabrera-Granado, L. Berge, and J. Herrmann, “Tailoring terahertz radiation by controlling tunnel photoionization events in gases,” New J. Phys. 13, 123029 (2011).
[Crossref]

Heyman, J. N.

Hochstrasser, R. M.

Houard, A.

Y. Liu, A. Houard, M. Durand, B. Prade, and A. Mysyrowicz, “Maker fringes in the terahertz radiation produced by a 2-color laser field in air,” Opt. Express 17, 11480–11485 (2009).
[Crossref]

A. Houard, Y. Liu, B. Prade, and A. Mysyrowicz, “Polarization analysis of terahertz radiation generated by four-wave mixing in air,” Opt. Lett. 33, 1195–1197 (2008).
[Crossref]

A. Houard, Y. Liu, B. Prade, V. T. Tikhonchuk, and A. Mysyrowicz, “Strong enhancement of terahertz radiation from laser filaments in air by a static electric field,” Phys. Rev. Lett. 100, 255006 (2008).
[Crossref]

C. D’Amico, A. Houard, M. Franco, B. Prade, A. Mysyrowicz, A. Couairon, and V. T. Tikhonchuk, “Conical forward THz emission from femtosecond-laser-beam filamentation in air,” Phys. Rev. Lett. 98, 235002 (2007).
[Crossref]

Husakou, A.

I. Babushkin, S. Skupin, A. Husakou, C. Koehler, E. Cabrera-Granado, L. Berge, and J. Herrmann, “Tailoring terahertz radiation by controlling tunnel photoionization events in gases,” New J. Phys. 13, 123029 (2011).
[Crossref]

Iwasaki, A.

N. Aközbek, A. Iwasaki, A. Becker, M. Scalora, S. L. Chin, and C. M. Bowden, “Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses,” Phys. Rev. Lett. 89, 143901 (2002).
[Crossref]

Iwaszczuk, K.

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

Jepsen, P. U.

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

Karpowicz, N.

J. Dai, N. Karpowicz, and X. C. Zhang, “Coherent polarization control of terahertz waves generated from two-color laser-induced gas plasma,” Phys. Rev. Lett. 103, 023001 (2009).
[Crossref]

H. Zhong, N. Karpowicz, and X. C. Zhang, “Terahertz emission profile from laser-induced air plasma,” Appl. Phys. Lett. 88, 261103 (2006).
[Crossref]

Kim, K. Y.

Y. S. You, T. I. Oh, and K. Y. Kim, “Mechanism of elliptically polarized terahertz generation in two-color laser filamentation,” Opt. Lett. 38, 1034–1036 (2013).
[Crossref]

T. I. Oh, Y. S. You, and K. Y. Kim, “Two-dimensional plasma current and optimized terahertz generation in two-color photoionization,” Opt. Express 20, 19778–19786 (2012).
[Crossref]

Y. S. You, T. I. Oh, and K. Y. Kim, “Off-axis phase-matched terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. Lett. 109, 183902 (2012).
[Crossref]

K. Y. Kim, “Generation of coherent terahertz radiation in ultrafast laser-gas interactions,” Phys. Plasmas 16, 056706 (2009).
[Crossref]

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

K. Y. Kim, J. H. Glownia, A. J. Taylor, and G. Rodriguez, “Terahertz emission from ultrafast ionizing air in symmetry-broken laser fields,” Opt. Express 15, 4577–4584 (2007).
[Crossref]

Klarskov, P.

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

Koehler, C.

I. Babushkin, S. Skupin, A. Husakou, C. Koehler, E. Cabrera-Granado, L. Berge, and J. Herrmann, “Tailoring terahertz radiation by controlling tunnel photoionization events in gases,” New J. Phys. 13, 123029 (2011).
[Crossref]

Köhler, C.

L. Bergé, S. Skupin, C. Köhler, I. Babushkin, and J. Herrmann, “3D numerical simulations of THz generation by two-color laser filaments,” Phys. Rev. Lett. 110, 073901 (2013).
[Crossref]

Kosareva, O. G.

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Koulouklidis, A. D.

A. Gorodetsky, A. D. Koulouklidis, M. Massaouti, and S. Tzortzakis, “Physics of the conical broadband terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. A 89, 033838 (2014).
[Crossref]

Kreß, M.

H. G. Roskos, M. D. Thomson, M. Kreß, and A. T. Löffler, “Broadband THz emission from gas plasmas induced by femtosecond optical pulses: from fundamentals to applications,” Laser Photon. Rev. 1, 349–368 (2007).
[Crossref]

Kress, M.

Kurihara, T.

Y. Minami, T. Kurihara, K. Yamaguchi, and T. Suemoto, “High-power THz wave generation in plasma induced by polarization adjusted two-color laser pulses,” Appl. Phys. Lett. 102, 041105 (2013).
[Crossref]

Légaré, F.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

Lian, H.

Lin, L.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

Liu, J.

Liu, W.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
[Crossref]

J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
[Crossref]

S. Xu, Y. Zhang, W. Liu, and S. L. Chin, “Experimental confirmation of high-stability of fluorescence in a femtosecond laser filament in air,” Opt. Commun. 282, 4800–4804 (2009).
[Crossref]

Y. Zhang, Y. Chen, S. Xu, H. Lian, M. Wang, W. Liu, S. L. Chin, and G. Mu, “Portraying polarization state of terahertz pulse generated by a two-color laser field in air,” Opt. Lett. 34, 2841–2843 (2009).
[Crossref]

Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
[Crossref]

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

Liu, Y.

Löffler, A. T.

H. G. Roskos, M. D. Thomson, M. Kreß, and A. T. Löffler, “Broadband THz emission from gas plasmas induced by femtosecond optical pulses: from fundamentals to applications,” Laser Photon. Rev. 1, 349–368 (2007).
[Crossref]

Löffler, T.

Lotti, A.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

Makarov, V. A.

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Marceau, C.

Y. Chen, C. Marceau, S. Génier, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission through four-wave mixing in a two-color filament in air,” Opt. Commun. 282, 4283–4287 (2009).
[Crossref]

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
[Crossref]

Massaouti, M.

A. Gorodetsky, A. D. Koulouklidis, M. Massaouti, and S. Tzortzakis, “Physics of the conical broadband terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. A 89, 033838 (2014).
[Crossref]

Minami, Y.

Y. Minami, T. Kurihara, K. Yamaguchi, and T. Suemoto, “High-power THz wave generation in plasma induced by polarization adjusted two-color laser pulses,” Appl. Phys. Lett. 102, 041105 (2013).
[Crossref]

Morandotti, R.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

F. Blanchard, G. Sharma, X. Ropagnol, L. Razzari, R. Morandotti, and T. Ozaki, “Improved terahertz two-color plasma sources pumped by high intensity laser beam,” Opt. Express 17, 6044–6052 (2009).
[Crossref]

Mu, G.

Mysyrowicz, A.

Y. Liu, A. Houard, M. Durand, B. Prade, and A. Mysyrowicz, “Maker fringes in the terahertz radiation produced by a 2-color laser field in air,” Opt. Express 17, 11480–11485 (2009).
[Crossref]

A. Houard, Y. Liu, B. Prade, and A. Mysyrowicz, “Polarization analysis of terahertz radiation generated by four-wave mixing in air,” Opt. Lett. 33, 1195–1197 (2008).
[Crossref]

A. Houard, Y. Liu, B. Prade, V. T. Tikhonchuk, and A. Mysyrowicz, “Strong enhancement of terahertz radiation from laser filaments in air by a static electric field,” Phys. Rev. Lett. 100, 255006 (2008).
[Crossref]

C. D’Amico, A. Houard, M. Franco, B. Prade, A. Mysyrowicz, A. Couairon, and V. T. Tikhonchuk, “Conical forward THz emission from femtosecond-laser-beam filamentation in air,” Phys. Rev. Lett. 98, 235002 (2007).
[Crossref]

Nguyen, A.

A. Nguyen, P. G. de Alaiza Martinez, J. Déchard, I. Thiele, I. Babushkin, S. Skupin, and L. Bergé, “Spectral dynamics of THz pulses generated by two-color laser filaments in air: the role of Kerr nonlinearities and pump wavelength,” Opt. Express 25, 4720–4740 (2017).
[Crossref]

A. Nguyen, P. G. de Alaiza Martínez, I. Thiele, S. Skupin, and L. Berge, “THz field engineering in two-color femtosecond filaments using chirped and delayed laser pulses,” New J. Phys. (accepted), doi: 10.1088/1367-2630/aaa470.
[Crossref]

Oh, T. I.

Ozaki, T.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

F. Blanchard, G. Sharma, X. Ropagnol, L. Razzari, R. Morandotti, and T. Ozaki, “Improved terahertz two-color plasma sources pumped by high intensity laser beam,” Opt. Express 17, 6044–6052 (2009).
[Crossref]

Panov, N. A.

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Peccianti, M.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

Peng, Y.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

Prade, B.

Y. Liu, A. Houard, M. Durand, B. Prade, and A. Mysyrowicz, “Maker fringes in the terahertz radiation produced by a 2-color laser field in air,” Opt. Express 17, 11480–11485 (2009).
[Crossref]

A. Houard, Y. Liu, B. Prade, and A. Mysyrowicz, “Polarization analysis of terahertz radiation generated by four-wave mixing in air,” Opt. Lett. 33, 1195–1197 (2008).
[Crossref]

A. Houard, Y. Liu, B. Prade, V. T. Tikhonchuk, and A. Mysyrowicz, “Strong enhancement of terahertz radiation from laser filaments in air by a static electric field,” Phys. Rev. Lett. 100, 255006 (2008).
[Crossref]

C. D’Amico, A. Houard, M. Franco, B. Prade, A. Mysyrowicz, A. Couairon, and V. T. Tikhonchuk, “Conical forward THz emission from femtosecond-laser-beam filamentation in air,” Phys. Rev. Lett. 98, 235002 (2007).
[Crossref]

Pugzlys, A.

Razzari, L.

Reimann, K.

Rodriguez, G.

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

K. Y. Kim, J. H. Glownia, A. J. Taylor, and G. Rodriguez, “Terahertz emission from ultrafast ionizing air in symmetry-broken laser fields,” Opt. Express 15, 4577–4584 (2007).
[Crossref]

Roither, S.

Ropagnol, X.

Roskos, H. G.

H. G. Roskos, M. D. Thomson, M. Kreß, and A. T. Löffler, “Broadband THz emission from gas plasmas induced by femtosecond optical pulses: from fundamentals to applications,” Laser Photon. Rev. 1, 349–368 (2007).
[Crossref]

M. Kress, T. Löffler, S. Eden, M. Thomson, and H. G. Roskos, “Terahertz-pulse generation by photoionization of air with laser pulses composed of both fundamental and second-harmonic waves,” Opt. Lett. 29, 1120–1122 (2004).
[Crossref]

Scalora, M.

N. Aközbek, A. Iwasaki, A. Becker, M. Scalora, S. L. Chin, and C. M. Bowden, “Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses,” Phys. Rev. Lett. 89, 143901 (2002).
[Crossref]

Schmidt, B. E.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

Shalaby, M.

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

Sharma, G.

Shipilo, D. E.

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Shkurinov, A. P.

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Skupin, S.

A. Nguyen, P. G. de Alaiza Martinez, J. Déchard, I. Thiele, I. Babushkin, S. Skupin, and L. Bergé, “Spectral dynamics of THz pulses generated by two-color laser filaments in air: the role of Kerr nonlinearities and pump wavelength,” Opt. Express 25, 4720–4740 (2017).
[Crossref]

E. Cabrera-Granado, Y. Chen, I. Babushkin, L. Bergé, and S. Skupin, “Spectral self-action of THz emission from ionizing two-color laser pulses in gases,” New J. Phys. 17, 023060 (2015).
[Crossref]

L. Bergé, S. Skupin, C. Köhler, I. Babushkin, and J. Herrmann, “3D numerical simulations of THz generation by two-color laser filaments,” Phys. Rev. Lett. 110, 073901 (2013).
[Crossref]

I. Babushkin, S. Skupin, A. Husakou, C. Koehler, E. Cabrera-Granado, L. Berge, and J. Herrmann, “Tailoring terahertz radiation by controlling tunnel photoionization events in gases,” New J. Phys. 13, 123029 (2011).
[Crossref]

A. Nguyen, P. G. de Alaiza Martínez, I. Thiele, S. Skupin, and L. Berge, “THz field engineering in two-color femtosecond filaments using chirped and delayed laser pulses,” New J. Phys. (accepted), doi: 10.1088/1367-2630/aaa470.
[Crossref]

Smith, W. J.

W. J. Smith, Modern Optical Engineering, 3rd ed. (McGraw-Hill, 2000).

Solyankin, P. M.

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Strikwerda, A. C.

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

Suemoto, T.

Y. Minami, T. Kurihara, K. Yamaguchi, and T. Suemoto, “High-power THz wave generation in plasma induced by polarization adjusted two-color laser pulses,” Appl. Phys. Lett. 102, 041105 (2013).
[Crossref]

Sun, Z.-D.

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
[Crossref]

Takahara, J.

J. Takahara, “Negative dielectric optical waveguides for nano-optical guiding,” in Plasmonic Nanoguides and Circuits, S. I. Bozhevolnyi, ed. (Pan Stanford Publishing, 2008), pp. 46–47.

Taylor, A. J.

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

K. Y. Kim, J. H. Glownia, A. J. Taylor, and G. Rodriguez, “Terahertz emission from ultrafast ionizing air in symmetry-broken laser fields,” Opt. Express 15, 4577–4584 (2007).
[Crossref]

Théberge, F.

Y. Chen, C. Marceau, S. Génier, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission through four-wave mixing in a two-color filament in air,” Opt. Commun. 282, 4283–4287 (2009).
[Crossref]

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
[Crossref]

Thiele, I.

A. Nguyen, P. G. de Alaiza Martinez, J. Déchard, I. Thiele, I. Babushkin, S. Skupin, and L. Bergé, “Spectral dynamics of THz pulses generated by two-color laser filaments in air: the role of Kerr nonlinearities and pump wavelength,” Opt. Express 25, 4720–4740 (2017).
[Crossref]

A. Nguyen, P. G. de Alaiza Martínez, I. Thiele, S. Skupin, and L. Berge, “THz field engineering in two-color femtosecond filaments using chirped and delayed laser pulses,” New J. Phys. (accepted), doi: 10.1088/1367-2630/aaa470.
[Crossref]

Thomson, M.

Thomson, M. D.

H. G. Roskos, M. D. Thomson, M. Kreß, and A. T. Löffler, “Broadband THz emission from gas plasmas induced by femtosecond optical pulses: from fundamentals to applications,” Laser Photon. Rev. 1, 349–368 (2007).
[Crossref]

Tikhonchuk, V. T.

A. Houard, Y. Liu, B. Prade, V. T. Tikhonchuk, and A. Mysyrowicz, “Strong enhancement of terahertz radiation from laser filaments in air by a static electric field,” Phys. Rev. Lett. 100, 255006 (2008).
[Crossref]

C. D’Amico, A. Houard, M. Franco, B. Prade, A. Mysyrowicz, A. Couairon, and V. T. Tikhonchuk, “Conical forward THz emission from femtosecond-laser-beam filamentation in air,” Phys. Rev. Lett. 98, 235002 (2007).
[Crossref]

Tonouchi, M.

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1, 97–105 (2007).
[Crossref]

Tzortzakis, S.

A. Gorodetsky, A. D. Koulouklidis, M. Massaouti, and S. Tzortzakis, “Physics of the conical broadband terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. A 89, 033838 (2014).
[Crossref]

Unterrainer, K.

Wang, M.

Wang, S.

Wang, Z.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
[Crossref]

J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
[Crossref]

Woerner, M.

Wu, S.

Xie, X.

X. Xie, J. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
[Crossref]

Xu, S.

Xu, Z.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
[Crossref]

J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
[Crossref]

Yamaguchi, K.

Y. Minami, T. Kurihara, K. Yamaguchi, and T. Suemoto, “High-power THz wave generation in plasma induced by polarization adjusted two-color laser pulses,” Appl. Phys. Lett. 102, 041105 (2013).
[Crossref]

Yang, J.

J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
[Crossref]

You, Y. S.

Zeng, B.

J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
[Crossref]

Zeng, Y.

Zhang, X. C.

J. Dai, N. Karpowicz, and X. C. Zhang, “Coherent polarization control of terahertz waves generated from two-color laser-induced gas plasma,” Phys. Rev. Lett. 103, 023001 (2009).
[Crossref]

X. Xie, J. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
[Crossref]

H. Zhong, N. Karpowicz, and X. C. Zhang, “Terahertz emission profile from laser-induced air plasma,” Appl. Phys. Lett. 88, 261103 (2006).
[Crossref]

Zhang, Y.

J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
[Crossref]

S. Xu, Y. Zhang, W. Liu, and S. L. Chin, “Experimental confirmation of high-stability of fluorescence in a femtosecond laser filament in air,” Opt. Commun. 282, 4800–4804 (2009).
[Crossref]

Y. Zhang, Y. Chen, S. Xu, H. Lian, M. Wang, W. Liu, S. L. Chin, and G. Mu, “Portraying polarization state of terahertz pulse generated by a two-color laser field in air,” Opt. Lett. 34, 2841–2843 (2009).
[Crossref]

Y. Zhang, Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, S. Xu, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Non-radially polarized THz pulse emitted from femtosecond laser filament in air,” Opt. Express 16, 15483–15488 (2008).
[Crossref]

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

Zhao, J.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
[Crossref]

J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
[Crossref]

Zhong, H.

H. Zhong, N. Karpowicz, and X. C. Zhang, “Terahertz emission profile from laser-induced air plasma,” Appl. Phys. Lett. 88, 261103 (2006).
[Crossref]

Zhu, Y.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

Zhuang, S.

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

ACS Photon. (1)

J. Zhao, W. Chu, Z. Wang, Y. Peng, C. Gong, L. Lin, Y. Zhu, W. Liu, Y. Cheng, S. Zhuang, and Z. Xu, “Strong spatial confinement of terahertz wave inside femtosecond laser filament,” ACS Photon. 3, 2338–2343 (2016).
[Crossref]

Appl. Phys. Lett. (3)

H. Zhong, N. Karpowicz, and X. C. Zhang, “Terahertz emission profile from laser-induced air plasma,” Appl. Phys. Lett. 88, 261103 (2006).
[Crossref]

Y. Minami, T. Kurihara, K. Yamaguchi, and T. Suemoto, “High-power THz wave generation in plasma induced by polarization adjusted two-color laser pulses,” Appl. Phys. Lett. 102, 041105 (2013).
[Crossref]

Y. Chen, C. Marceau, W. Liu, Z.-D. Sun, Y. Zhang, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission in the forward direction of a femtosecond laser filament in air,” Appl. Phys. Lett. 93, 231116 (2008).
[Crossref]

Chin. Opt. Lett. (1)

J. Opt. Soc. Am. B (1)

Laser Photon. Rev. (1)

H. G. Roskos, M. D. Thomson, M. Kreß, and A. T. Löffler, “Broadband THz emission from gas plasmas induced by femtosecond optical pulses: from fundamentals to applications,” Laser Photon. Rev. 1, 349–368 (2007).
[Crossref]

Laser Phys. Lett. (1)

J. Zhao, Y. Zhang, Z. Wang, W. Chu, B. Zeng, W. Liu, Y. Cheng, and Z. Xu, “Propagation of terahertz wave inside femtosecond laser filament in air,” Laser Phys. Lett. 11, 095302 (2014).
[Crossref]

Nat. Photonics (2)

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1, 97–105 (2007).
[Crossref]

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

New J. Phys. (3)

I. Babushkin, S. Skupin, A. Husakou, C. Koehler, E. Cabrera-Granado, L. Berge, and J. Herrmann, “Tailoring terahertz radiation by controlling tunnel photoionization events in gases,” New J. Phys. 13, 123029 (2011).
[Crossref]

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

E. Cabrera-Granado, Y. Chen, I. Babushkin, L. Bergé, and S. Skupin, “Spectral self-action of THz emission from ionizing two-color laser pulses in gases,” New J. Phys. 17, 023060 (2015).
[Crossref]

Opt. Commun. (2)

S. Xu, Y. Zhang, W. Liu, and S. L. Chin, “Experimental confirmation of high-stability of fluorescence in a femtosecond laser filament in air,” Opt. Commun. 282, 4800–4804 (2009).
[Crossref]

Y. Chen, C. Marceau, S. Génier, F. Théberge, M. Châteauneuf, J. Dubois, and S. L. Chin, “Elliptically polarized terahertz emission through four-wave mixing in a two-color filament in air,” Opt. Commun. 282, 4283–4287 (2009).
[Crossref]

Opt. Express (6)

Opt. Lett. (6)

Phys. Plasmas (1)

K. Y. Kim, “Generation of coherent terahertz radiation in ultrafast laser-gas interactions,” Phys. Plasmas 16, 056706 (2009).
[Crossref]

Phys. Rev. A (1)

A. Gorodetsky, A. D. Koulouklidis, M. Massaouti, and S. Tzortzakis, “Physics of the conical broadband terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. A 89, 033838 (2014).
[Crossref]

Phys. Rev. Lett. (9)

L. Bergé, S. Skupin, C. Köhler, I. Babushkin, and J. Herrmann, “3D numerical simulations of THz generation by two-color laser filaments,” Phys. Rev. Lett. 110, 073901 (2013).
[Crossref]

V. A. Andreeva, O. G. Kosareva, N. A. Panov, D. E. Shipilo, P. M. Solyankin, M. N. Esaulkov, P. González de Alaiza Martínez, A. P. Shkurinov, V. A. Makarov, L. Bergé, and S. L. Chin, “Ultrabroad terahertz spectrum generation from an air-based filament plasma,” Phys. Rev. Lett. 116, 063902 (2016).
[Crossref]

Y. S. You, T. I. Oh, and K. Y. Kim, “Off-axis phase-matched terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. Lett. 109, 183902 (2012).
[Crossref]

M. Clerici, M. Peccianti, B. E. Schmidt, L. Caspani, M. Shalaby, M. Giguère, A. Lotti, A. Couairon, F. Légaré, T. Ozaki, D. Faccio, and R. Morandotti, “Wavelength scaling of terahertz generation by gas ionization,” Phys. Rev. Lett. 110, 253901 (2013).
[Crossref]

J. Dai, N. Karpowicz, and X. C. Zhang, “Coherent polarization control of terahertz waves generated from two-color laser-induced gas plasma,” Phys. Rev. Lett. 103, 023001 (2009).
[Crossref]

X. Xie, J. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
[Crossref]

C. D’Amico, A. Houard, M. Franco, B. Prade, A. Mysyrowicz, A. Couairon, and V. T. Tikhonchuk, “Conical forward THz emission from femtosecond-laser-beam filamentation in air,” Phys. Rev. Lett. 98, 235002 (2007).
[Crossref]

A. Houard, Y. Liu, B. Prade, V. T. Tikhonchuk, and A. Mysyrowicz, “Strong enhancement of terahertz radiation from laser filaments in air by a static electric field,” Phys. Rev. Lett. 100, 255006 (2008).
[Crossref]

N. Aközbek, A. Iwasaki, A. Becker, M. Scalora, S. L. Chin, and C. M. Bowden, “Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses,” Phys. Rev. Lett. 89, 143901 (2002).
[Crossref]

Sci. Rep. (2)

P. G. de Alaiza Martínez, X. Davoine, A. Debayle, L. Gremillet, and L. Bergé, “Terahertz radiation driven by two-color laser pulses at near-relativistic intensities: competition between photoionization and wakefield effects,” Sci. Rep. 6, 26743 (2016).
[Crossref]

J. Zhao, W. Chu, L. Guo, Z. Wang, J. Yang, W. Liu, Y. Cheng, and Z. Xu, “Terahertz imaging with sub-wavelength resolution by femtosecond laser filament in air,” Sci. Rep. 4, 3880 (2014).
[Crossref]

Other (5)

Handbook of Optics, 2nd ed. (McGraw-Hill, 1994), Vol. 2.

W. J. Smith, Modern Optical Engineering, 3rd ed. (McGraw-Hill, 2000).

J. Takahara, “Negative dielectric optical waveguides for nano-optical guiding,” in Plasmonic Nanoguides and Circuits, S. I. Bozhevolnyi, ed. (Pan Stanford Publishing, 2008), pp. 46–47.

A. Nguyen, P. G. de Alaiza Martínez, I. Thiele, S. Skupin, and L. Berge, “THz field engineering in two-color femtosecond filaments using chirped and delayed laser pulses,” New J. Phys. (accepted), doi: 10.1088/1367-2630/aaa470.
[Crossref]

R. W. Boyd, Nonlinear Optics (Academic, 2003).

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (13)

Fig. 1.
Fig. 1. Schematic of the experimental setup and the coordinate system defined in this work. Inset: the recorded (a) ETHz,X, (b) ETHz,Y, and the corresponding (c) ETHz,o, (d) ETHz,e as a function of θ.
Fig. 2.
Fig. 2. From top to bottom: simulation outcomes (lines) of 4WM, PC, 4WM + PC, and 4WM + PC + 1DND, together with experimental results (black circles) for (a) ATHz,o and (b) ATHz,e.
Fig. 3.
Fig. 3. (a) Ne as a function of θ. Black open circles: experiment; red line: simulation. (b) KE measured THz beam diameter d inside the plasma column and its frequency dependence at three θ values.
Fig. 4.
Fig. 4. (a) Side CCD images of the plasma filaments [insets b1 and b2, with maximums pointed by arrows in Fig. 3(a)], and the corresponding radial Ne distributions (experiment denoted by black open circles versus Gaussian fitting denoted by red lines). (b) Re[ϵr] distribution with the definition of 2a.
Fig. 5.
Fig. 5. Normalized |Er|2 distributions given by 1DND model in case of Ne=b1 and b2 for (a) 0.35, (b) 0.7, and (c) 1.4 THz.
Fig. 6.
Fig. 6. (a) Variations of the confined THz amplitude ratio η along θ at 0.35, 0.7, and 1.4 THz, respectively. (b) FWHM of THz spectra as a function of θ (inset) and two representative THz spectra with FWHM pointed by green arrows.
Fig. 7.
Fig. 7. Coordinate system defined in this appendix.
Fig. 8.
Fig. 8. (a) Simulated Ne distribution along θ, considering Eω varying from 1×1010 to 10×1010  V/m. (b) Four representative Ne(θ) curves for Eω=1×1010  V/m (bold black line), Eω=2.75×1010  V/m (thin red line), Eω=5×1010  V/m (gray dashed line), and Eω=7×1010  V/m (green dotted line).
Fig. 9.
Fig. 9. Experimental and simulated power of 800 nm and 400 nm after the BBO crystal.
Fig. 10.
Fig. 10. (a) Example of asymmetric laser field |Etotal(t)| obtained at θ=55°. (b) The corresponding ionization result of dNe(t)/dt.
Fig. 11.
Fig. 11. (a) Example of symmetric laser field |Etotal(t)| obtained at θ=0°. (b) The corresponding ionization result of dNe(t)/dt.
Fig. 12.
Fig. 12. Calculation results of E2ω,eEω,kEω,l/Eω4.
Fig. 13.
Fig. 13. Results of simulations via the combination of 4WM and PC models with different amplitude ratios of 01, 11, and 21, for (a) ATHz,o and (b) ATHz,e, along with the experimental results (black solid circles).

Equations (23)

Equations on this page are rendered with MathJax. Learn more.

Re[ϵr(r)]=Re[1e2Ne(r)meϵ0(ω2ivω)],
E(t)=Eo(t)o^+Ee(t)e^=Eω,o(t)o^+Eω,e(t)e^+E2ω,e(t)e^,
Eω,o(t)=Eωexp(t2a2)·sinθ·cos[ωt(nω,ong,ω,o)ωcL1(nω,airng,ω,air)ωcL2],Eω,e(t)=Eωexp[(tτω)2a2]·cosθ·cos[ω(tτω)(nω,eng,ω,e)ωcL1(nω,airng,ω,air)ωcL2],E2ω,e(t)=βEω2exp[2(tτ2ω)2a2]sin2θ·cos[2ω(tτ2ω)(n2ω,eng,2ω,e)2ωcL1(n2ω,airng,2ω,air)2ωcL2+φ],
τω=L1c(ng,ω,eng,ω,o)+L2c(ng,ω,airng,ω,air)=L1c(ng,ω,eng,ω,o),
τ2ω=L1c(ng,2ω,eng,ω,o)+L2c(ng,2ω,airng,ω,air),
{no2=2.7405+0.0184λ20.01790.0155λ2ne2=2.3730+0.0128λ20.01560.0044λ2,
(nair1)×108=8342.1+2406030λ2130λ21+15996λ238.9λ21,
1ne2(α)=cos2αno2+sin2αne2.
R(t)=aA(t)exp[bA(t)],
{a=4ωarH5/2b=(2/3)rH3/2Ea=κ3m2e5/45.14×1011  V/mωa=κ2me4/34.13×1016/s.
{dNe(t)=dNe(t)N2+dNe(t)O2dNe(t)N2=R(t)N2[N0N2Ne(t)N2]dtdNe(t)O2=R(t)O2[N0O2Ne(t)O2]dt.
ETHz,ijklχijkl(3)E2ω,jEω,kEω,l(i,j,k,l=o,e).
ETHz,iklχiekl(3)E2ω,eEω,kEω,l(i,k,l=o,e).
ETHz,i(χieeo(3)+χieoe(3))E2ω,eEω,eEω,o+χieee(3)E2ω,eEω,eEω,e+χieoo(3)E2ω,eEω,oEω,o=(χieeo(3)+χieoe(3))Eω4sin3θcosθ+χieee(3)Eω4sin2θcos2θ+χieoo(3)Eω4sin4θ(i=o,e).
ETHz,o(χoeeo(3)+χoeoe(3))E2ω,eEω,eEω,o=(χoeeo(3)+χoeoe(3))Eω4sin3θcosθATHz,o(θ)(χoeeo(3)+χoeoe(3))sin3θcosθ,
ETHz,eχeeee(3)E2ω,eEω,eEω,e+χeeoo(3)E2ω,eEω,oEω,oχeeee(3)E2ω,eEω,eEω,e(χeeee(3)χeeoo(3)[9])=χeeee(3)Eω4sin2θcos2θATHz,e(θ)χeeee(3)sin2θcos2θ.
Ez1=AI0(γ1r),Er1=iβγ1AI1(γ1r),Hϕ1=iωϵr1ϵ0γ1AI1(γ1r),
Ez2=BK0(γ2r),Er2=iβγ2BK1(γ2r),Hϕ2=iωϵr2ϵ0γ2BK1(γ2r),
γ1I0(γ1a)K1(γ2a)γ2I1(γ1a)K0(γ2a)=ϵr1ϵr2.
ATHz4WM+PC(θ)=0.42·ATHz4WM(θ)ATHz4WM(θ)max+1·ATHzPC(θ)ATHzPC(θ)max.
ηTHz(θ)=0r<aITHz1DND(r,θ)·2πr·dr0ITHz1DND(r,θ)·2πr·dr.
ATHz4WM+PC+1DND(θ)=ATHz4WM+PC(θ)·ηTHz(θ),
Δφ=k0·n2I·z.

Metrics