Laser pulse amplification upon raman backscattering in plasma produced in dielectric capillaries

被引：43

作者：

Balakin, AA ^{[1
]}

Kartashov, DV ^{[1
]}

Kiselev, AM ^{[1
]}

Skobelev, SA ^{[1
]}

Stepanov, AN ^{[1
]}

Fraiman, GM ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603950, Russia

来源：

JETP LETTERS | 2004年 / 80卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1800205

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Femtosecond-pulse amplification upon stimulated Raman scattering is experimentally demonstrated for the case of a counter-propagating femtosecond laser pulse and a frequency-modulated broadband pump pulse with the same carrier frequency in a dielectric capillary filled with gas plasma. A value of similar to10(3) obtained for the spectral intensity amplification and similar to10(2) for the output energy are the highest ever achieved for these quantities to date. Numerical simulation demonstrates good agreement with the experimental results. Based on the experimental data and the results of theoretical calculations, we propose a hydrodynamic mechanism for plasma-wave breaking as the mechanism playing an important role in the amplification restriction in the scheme considered. (C) 2004 MAIK "Nauka / Interperiodica".

引用

页码：12 / 16

页数：5

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