%0 Journal Article
%T The characteristic of the stero-coupling high-Q photonic crystal slab cavity<br>立体耦合光子晶体薄板微腔的高Q值特性研究
%A Jiang Bin
%A Liu An-Jin
%A Chen Wei
%A Xing Ming-Xin
%A Zhou Wen-Jun
%A Zheng Wan-Hua
%A <br>江斌
%A 刘安金
%A 陈微
%A 邢名欣
%A 周文君
%A 郑婉华
%J 物理学报
%D 2010
%I 
%X Inspired by the idea of the stero-coupling, we propose a new sandwich-like photonic crystal microcavity which is composed of double layer photonic crystal slabs H1 (DLPCS-H1) cavity with an air layer in between. We calculate the electromagnetic field distribution and the quality factor of the dipole mode by the three-dimensional finite-difference time-domain method and the Padé approximation method. Through carefully analyzing the effect of the air layer height on the quality factor of the dipole mode, we obtain an optimized DLPCS-H1 cavity in which the height of intermediate air layer is about 0.5a (a is the lattice constant, a=420 nm). In this cavity, the quality factor of the dipole mode is 4 times as large as that of the conventional single layer photonic crystal slab H1 cavity. Furthermore, we study the three-layer photonic crystal slabs H1 cavity, and the quality factor of its dipole mode is increased over 7 times.
%K double layers photonic crystal slabs cavity
%K dipole mode
%K quality factor
%K Padé approximation<br>双层光子晶体薄板微腔
%K 偶极模
%K 品质因子
%K Padé近似
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=F91E6AF9A2B2B8466975DAE13A08192B&yid=140ECF96957D60B2&vid=6AC2A205FBB0EF23&iid=59906B3B2830C2C5&sid=936542FE0B52B615&eid=498FF04C5DD661E1&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=15