Abstract

Temporal pulse characterization methods can often not be applied to deep ultraviolet (DUV) pulses due to the lack of suitable nonlinear crystals and very low pulse energies. Here, a method is introduced for the characterization of two unknown and independent laser pulses. The applicability is broad, but the method is especially useful for pulses in the DUV, because pulse energies on the picojoule scale suffice. The basis is a spectral analysis of the two interfering DUV pulses, while one of the pulses is phase shifted by an unknown visible-infrared (VIS-IR) pulse via cross-phase modulation. The pulse retrieval is analytic, and the fidelity can be checked by comparing the complex-valued data trace with the retrieved trace.

© 2019 Optical Society of America

Full characterization of 8  fs deep UV pulses via a dispersion scan

Ayhan Tajalli, Thomas K. Kalousdian, Martin Kretschmar, Sven Kleinert, Uwe Morgner, and Tamas Nagy
Opt. Lett. 44(10) 2498-2501 (2019)

Pulse characterization by cross-phase modulation in chalcogenide glass

Nurmemet Abdukerim, Imtiaz Alamgir, and Martin Rochette
Opt. Lett. 43(19) 4771-4774 (2018)

Rapid phase retrieval of ultrashort pulses from dispersion scan traces using deep neural networks

Sven Kleinert, Ayhan Tajalli, Tamas Nagy, and Uwe Morgner
Opt. Lett. 44(4) 979-982 (2019)

Direct characterization of tuneable few-femtosecond dispersive-wave pulses in the deep UV

Christian Brahms, Dane R. Austin, Francesco Tani, Allan S. Johnson, Douglas Garratt, John C. Travers, John W. G. Tisch, Philip St.J. Russell, and Jon P. Marangos
Opt. Lett. 44(4) 731-734 (2019)

Simultaneous measurement of two ultrashort near-ultraviolet pulses produced by a multiplate continuum using dual self-diffraction dispersion-scan

Miguel Canhota, Rosa Weigand, and Helder M. Crespo
Opt. Lett. 44(4) 1015-1018 (2019)