RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB
General information
Latest issue
Archive
Impact factor
Guidelines for authors

Search papers
Search references

RSS
Latest issue
Current issues
Archive issues
What is RSS



Kvantovaya Elektronika:
Year:
Volume:
Issue:
Page:
Find






Personal entry:
Login:
Password:
Save password
Enter
Forgotten password?
Register


Kvantovaya Elektronika, 2012, Volume 42, Number 4, Pages 319–326 (Mi qe14782)  

Nonlinear optical phenomena

Nonlinear propagation of a high-power focused femtosecond laser pulse in air under atmospheric and reduced pressure

Yu. E. Geintsa, A. A. Zemlyanova, A. A. Ioninb, S. I. Kudryashovb, L. V. Seleznevb, D. V. Sinitsynb, E. S. Sunchugashevab

a Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Science, Tomsk
b P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow

Abstract: This paper examines the propagation of focused femtosecond gigawatt laser pulses in air under normal and reduced pressure in the case of Kerr self-focusing and photoionisation of the medium. The influence of gas density on the beam dimensions and power and the electron density in the plasma column in the nonlinear focus zone of the laser beam has been studied experimentally and by numerical simulation. It has been shown that, in rarefied air, the radiation-induced reduction in the rate of plasma formation diminishes the blocking effect of the plasma on the growth of the beam intensity in the case of tight focusing. This allows higher power densities of ultrashort laser pulses to be reached in the focal waist region in comparison with beam self-focusing under atmospheric pressure.

Keywords: femtosecond laser pulse, filament, plasma

Full text: PDF file (688 kB)
References: PDF file   HTML file

English version:
Quantum Electronics, 2012, 42:4, 319–326

Bibliographic databases:

PACS: 42.65.Jx, 42.65.Re, 33.80.Eh, 52.38.-r
Received: 01.12.2011

Citation: Yu. E. Geints, A. A. Zemlyanov, A. A. Ionin, S. I. Kudryashov, L. V. Seleznev, D. V. Sinitsyn, E. S. Sunchugasheva, “Nonlinear propagation of a high-power focused femtosecond laser pulse in air under atmospheric and reduced pressure”, Kvantovaya Elektronika, 42:4 (2012), 319–326 [Quantum Electron., 42:4 (2012), 319–326]

Linking options:
  • http://mi.mathnet.ru/eng/qe14782
  • http://mi.mathnet.ru/eng/qe/v42/i4/p319

    SHARE: VKontakte.ru FaceBook Twitter Mail.ru Livejournal Memori.ru


    Citing articles on Google Scholar: Russian citations, English citations
    Related articles on Google Scholar: Russian articles, English articles
  • Квантовая электроника Quantum Electronics
    Number of views:
    This page:189
    Full text:83
    References:23
    First page:3

     
    Contact us:
     Terms of Use  Registration  Logotypes © Steklov Mathematical Institute RAS, 2020