%0 Journal Article
%T Analysis of surface emitting distributed-feedback quantum cascade laser based on a surface-plasmon waveguide<br>基于表面等离子波导的面发射分布反馈量子级联激光器的分析
%A Guo Wanhong
%A Lu Quanyong
%A Liu Junqi
%A Zhang Wei
%A Jiang Yuchao
%A Li Lu
%A Wang Lijun
%A Liu Fengqi
%A Wang Zhanguo
%A <br>郭万红
%A 陆全勇
%A 刘俊岐
%A 张伟
%A 江宇超
%A 李路
%A 王利军
%A 刘峰奇
%A 王占国
%J 半导体学报
%D 2010
%I 
%X An analysis of a surface emitting distributed-feedback quantum cascade laser (DFB QCL) based on a surface-plasmon waveguide is presented. The second-order grating realized by the sole patterning of the top metal provides strong feedback. The analysis is based on a coupled-mode theory derived from exact Floquet-Bloch solutions of the infinite periodic structure. The surface outcoupling efficiency and threshold gain for the optimized device design are 43% and 12 cm--1, respectively, which represent great improvements on the conventional dielectric waveguide based DFB QCL with typical values of 17.5% and 20 cm-1.
%K quantum cascade laser
%K distributed feedback lasers
%K surface plasmon waveguide
%K surface emission<br>量子级联激光器，分布反馈激光器，表面等离子波导，面发射
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=025C8057C4D37C4BA0041DC7DE7C758F&aid=63AC08E6D685C31697DBF41F9982A1B3&yid=140ECF96957D60B2&vid=4AD960B5AD2D111A&iid=708DD6B15D2464E8&sid=0B05BD33C7F2DD95&eid=94C357A881DFC066&journal_id=1674-4926&journal_name=半导体学报&referenced_num=0&reference_num=0