HIGH COMPRESSION RATIO BACKWARD RAMAN CONVERSION FOR HIGH-BRIGHTNESS EXCIMER-LASER SYSTEMS

被引：15
作者：
NISHIOKA, H
KIMURA, K
UEDA, K
TAKUMA, H
机构：
[1] Institute for Laser Science, University of Electro-communications, Chofu Tokyo 182
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 1993年 / 29卷 / 07期
关键词：
D O I：
10.1109/3.237501
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new scheme of backward Raman pulse compression, in which the backward first Stokes pulse is amplified under stationary conditions and the backward second Stokes under transient conditions by choosing an appropriate Raman medium, is proposed. The compression factor and efficiency are improved by insertion of selective absorbers for the second Stokes component. The feasibility of such a scheme is demonstrated by an experiment in which a 249 nm UV pulse of 20 ns duration has been compressed into a 30-ps pulse with an power gain of 150 and energy conversion efficiency of 22%. Higher compression ratio and higher efficiency is expected by under improved conditions.
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页码：2251 / 2258
页数：8
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