Laser Physics

, Volume 20, Issue 4, pp 886–890 | Cite as

Femtosecond laser filamentation with a 4 J/60 fs Ti:Sapphire laser beam: Multiple filaments and intensity clamping

  • Z. G. Ji
  • J. S. Liu
  • Z. X. Wang
  • J. Ju
  • X. M. Lu
  • Y. H. Jiang
  • Y. X. Leng
  • X. Y. Liang
  • W. Liu
  • S. L. Chin
  • R. X. Li
  • Z. Z. Xu
Nonlinear and Quantum Optics


We used both the backscattered nitrogen fluorescence signal (BSF) and ICCD fluorescence side imaging methods to study the filament light intensity with a 4 J/60 fs Ti:sapphire laser beam. It has been concluded that even the laser power is increased by 100 times in our experiment the peak laser intensity in the filament only has a little change. We attribute this phenomenon to the result of intensity clamping and the competition of multiple filaments.


Laser Pulse Laser Phys Laser Physics Multiple Filament Peak Laser Intensity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • Z. G. Ji
    • 1
  • J. S. Liu
    • 1
  • Z. X. Wang
    • 1
  • J. Ju
    • 1
  • X. M. Lu
    • 1
  • Y. H. Jiang
    • 1
  • Y. X. Leng
    • 1
  • X. Y. Liang
    • 1
  • W. Liu
    • 2
  • S. L. Chin
    • 3
  • R. X. Li
    • 1
  • Z. Z. Xu
    • 1
  1. 1.State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optic and Fine MechanicsChinese Academy of SciencesShanghaiChina
  2. 2.Key Laboratory of Optoelectronic Information Science and Technology, Education Ministry of China, Institute of Modern OpticsNankai UniversityTianjinChina
  3. 3.Centre d’Optique, Photonique et Laser and Düpartement de Physique, de Günie Physique et d’OptiqueUniversitü LavalQüubecCanada

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