%0 Journal Article
%T Influence of spatial localization on the threshold of quasi-state cavities in random lasers<br>随机激光器中准态腔的阈值与其局域化程度的关系
%A Liu Jin-Song
%A Wang Hong
%A <br>刘劲松
%A 王　宏
%J 物理学报
%D 2004
%I 
%X Laser phenomena in random media have been studied based on the localized theory for optical waves in finite random media. The relationship between spatial localization and amplification for quasi-state modes has been investigated by use of the finite difference time domain method. The spatial profile and the spectra characteristics of quasi-state modes are determined by analyzing the localized processes of optical light beams in random media without gain. The amplification and threshold of quasi-state modes are analyzed in random media with gain. Results show that the quasi-state mode with a stronger spatial localization has lower threshold and can be amplified preferentially.
%K random lasers
%K quasi-state mode
%K optical properties of random media<br>随机激光器
%K 准态模
%K 随机介质中的光学特性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=169C204D434B2264&yid=D0E58B75BFD8E51C&vid=8E6AB9C3EBAAE921&iid=59906B3B2830C2C5&sid=83E9F07EB7F05B82&eid=C1754894D93F8EAF&journal_id=1000-3290&journal_name=物理学报&referenced_num=5&reference_num=17