Two-color plasma terahertz far-field angular distribution conversion by focal length variation

P. A. Chizhov, A. A. Ushakov, V. A. Andreeva, N. A. Panov, D. E. Shipilo, M. Matoba, N. Nemoto, N. Kanda, K. Konishi, V. V. Bukin, M. Kuwata-Gonokami, J. Yumoto, O. G. Kosareva, S. V. Garnov, A. B. Saveliev

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We study the angular and frequency-angular distributions of the low-frequency part (0.3-3 THz) of the terahertz emission from two-color femtosecond plasma spark experimentally and in 3D + time numerical simulations. Our experiments and simulations show, that the weakening in the focusing conditions results in the squeezing of the THz angular distribution and the formation of the bright conical emission.

Original languageEnglish (US)
Title of host publicationProceedings - International Conference Laser Optics 2018, ICLO 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages1
ISBN (Print)9781538636121
DOIs
StatePublished - Aug 13 2018
Event2018 International Conference Laser Optics, ICLO 2018 - St. Petersburg, Russian Federation
Duration: Jun 4 2018Jun 8 2018

Publication series

NameProceedings - International Conference Laser Optics 2018, ICLO 2018

Other

Other2018 International Conference Laser Optics, ICLO 2018
CountryRussian Federation
CitySt. Petersburg
Period6/4/186/8/18

Keywords

  • Femtosecond laser
  • Laser plasma
  • Terahertz radiation

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