%0 Journal Article
%T The metal grating coupling of long-wavelength quantum well infrared photodetectors: surface plasmon effect<br>长波量子阱红外光电探测器金属光栅耦合的研究——基于金属表面等离子效应
%A WENG Qian-Chun
%A LI Liang
%A CHEN Jun
%A WEN Jie
%A XIONG Da-Yuan
%A <br>翁钱春
%A 李梁
%A 陈俊
%A 温洁
%A 熊大元
%J 红外与毫米波学报
%D 2011
%I Science Press
%X The distribution of electromagnetic field of 2D metal grating in the Long-Wavelength Quantum Well Infrared Photodetectors (LW-QWIPs) was studied by Finite Time Domain Method (FDTD). The result shows that making good use of the surface plasmons can remarkably improve the optical coupling efficiency in the LW-QWIPs. It also shows that using a metal grating with the ratio of the hole diameter to the grating period ranged from 0.8 to 0.9, optimal optical coupling can be achieved.
%K QWIPs
%K 2D metal grating
%K FDTD
%K surface plasmons<br>量子阱红外探测器
%K 二维金属光栅
%K 时域有限差分（FDTD）
%K 金属表面等离子效应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=5A63F5AD7FC6A67982454FC30B3F4151&yid=9377ED8094509821&vid=340AC2BF8E7AB4FD&iid=94C357A881DFC066&sid=BFB86B6ED3A99B9D&eid=6B3068A7C27BD349&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=0&reference_num=0