%0 Journal Article
%T Stimulated Raman backscattering from an ultrashort laser interacting with underdense plasmas
%A Tang Yu-Hui
%A Han Shen-Sheng
%A Zhang Chang-Xue
%A Wu Yan-Qing
%A Cheng Jing
%A Zhong Fang-Chuan
%A Zhu Yu-Zhe
%A Xu Zhi-Zhan
%A <br>汤宇晖
%A 韩申生
%A 张长学
%A 吴衍青
%A 程静
%A 钟方川
%A 朱喻哲
%A 徐至展
%J 中国物理 B
%D 2002
%I 
%X We present experimental results of the stimulated Raman backscattering instability (BSRS) in an ultrashort intense (45fs, 5.7×1017Wcm-2) laser pulse interacting with an optically ionized helium gas. We have studied the stimulated Raman backscattering reflectivity and the phenomenon of the transition from strongly coupled BSRS to weakly coupled BSRS. We have obtained a good agreement between our experimental results and the theory of BSRS.
%K laser-plasma interactions
%K stimulated Raman backscattering<br>等离子体
%K 激光
%K 喇曼散射
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=BB9A8CB6F373679D659FFDC105F55B47&yid=C3ACC247184A22C1&vid=708DD6B15D2464E8&iid=CA4FD0336C81A37A&sid=771152D1ADC1C0EB&eid=8E6AB9C3EBAAE921&journal_id=1009-1963&journal_name=中国物理&referenced_num=2&reference_num=0