Intensity clamping and re-focusing of intense femtosecond laser pulses in nitrogen molecular gas

被引：253

作者：

Becker, A

Aközbek, N

Vijayalakshmi, K

Oral, E

Bowden, CM

Chin, SL ^{[1
]}

机构：

[1] Univ Laval, Ctr Opt Photon & Laser, Quebec City, PQ G1K 7P4, Canada

[2] Univ Laval, Dept Phys Genie Phys & Opt, Quebec City, PQ G1K 7P4, Canada

[3] USA, Aviat & Missile Command, Weapons Sci Directorate,AMSAM,RD,WS,ST, Aviat & Missile Res Dev & Engn Ctr, Redstone Arsenal, AL 35898 USA

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2001年 / 73卷 / 03期

关键词：

D O I：

10.1007/s003400100637

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present results of measurements of fluorescence spectra due to the interaction of a Ti:sapphire laser pulse with N(2) molecules at different gas pressures and pulse energies. The analysis of the data together with the results of numerical simulations, using a propagation model, reveal signatures of the phenomena of intensity clamping and of re-focusing of the laser pulse at high gas pressure. The laser pulse energy for intensity clamping as a function of the gas pressure is determined.

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页码：287 / 290

页数：4

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