Laser Physics

, Volume 19, Issue 8, pp 1776–1792

Can we reach very high intensity in air with femtosecond PW laser pulses?

  • O. G. Kosareva
  • W. Liu
  • N. A. Panov
  • J. Bernhardt
  • Z. Ji
  • M. Sharifi
  • R. Li
  • Z. Xu
  • J. Liu
  • Z. Wang
  • J. Ju
  • X. Lu
  • Y. Jiang
  • Y. Leng
  • X. Liang
  • V. P. Kandidov
  • S. L. Chin
Filamentation

DOI: 10.1134/S1054660X09150250

Cite this article as:
Kosareva, O.G., Liu, W., Panov, N.A. et al. Laser Phys. (2009) 19: 1776. doi:10.1134/S1054660X09150250

Abstract

In the course of femtosecond pulse filamentation in atmospheric density gases, the peak intensity is always limited by optical-field-induced ionization. This intensity clamping phenomenon is universal in all the cases we studied, namely, single and multiple filament regimes with and without external focusing using pulses of up to subpetawatt level. Even in the tight focusing cases, the clamped intensity along the propagation direction does not exceed 30% of the global intensity maximum. The remarkable shot-to-shot stability of the clamped intensity (better than 1% of the maximum value) is revealed both experimentally and numerically in a single filament regime in air.

PACS numbers

42.65.Jx42.65.Re32.80.Fb

Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • O. G. Kosareva
    • 1
  • W. Liu
    • 2
  • N. A. Panov
    • 1
  • J. Bernhardt
    • 3
  • Z. Ji
    • 4
  • M. Sharifi
    • 3
  • R. Li
    • 4
  • Z. Xu
    • 4
  • J. Liu
    • 4
  • Z. Wang
    • 4
  • J. Ju
    • 4
  • X. Lu
    • 4
  • Y. Jiang
    • 4
  • Y. Leng
    • 4
  • X. Liang
    • 4
  • V. P. Kandidov
    • 1
  • S. L. Chin
    • 3
  1. 1.International Laser Center, Physics DepartmentMoscow State UniversityMoscowRussia
  2. 2.Institute of Modern OpticsNankai University, Key Laboratory of Opto-electronic Information Science and Technology, Education Ministry of ChinaTianjinChina
  3. 3.Centre d’Optique, Photonique et Laser (COPL) and Département de physique, de génie physique et d’optiqueUniversite LavalQuébecCanada
  4. 4.State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optic and Fine MechanicsChinese Academy of SciencesShanghaiChina