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Optica Publishing Group
  • Current Optics and Photonics
  • Vol. 2,
  • Issue 4,
  • pp. 361-367
  • (2018)

Plasmon Assisted Deep-ultraviolet Pulse Generation from Amorphous Silicon Dioxide in Nano-aperture

Open Access Open Access

Abstract

Ultrafast deep-ultraviolet (DUV) pulse generation from the subwavelength aperture of a plasmonic waveguide was investigated. The plasmonic nanofocusing of near-infrared (NIR) pulses was exploited to enhance DUV photoemission of surface third harmonic generation (STHG) at the amorphous SiO2 dielectric. The generated DUV pulses which are successfully made from a nano-aperture using 10 fs NIR pulses have a spectral bandwidth of 13 nm at a carrier wavelength of 266 nm. This method is applicable for tip-based ultrafast UV laser spectroscopy of nanostructures or biomolecules.

© 2018 Optical Society of Korea

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