%0 Journal Article
%T Guide modes at interface of photonic crystal heterostructures composed of different lattices<br>不同晶格光子晶体异质结的界面传导模
%A Liu Jiang-Tao
%A Zhou Yun-Song
%A Wang Fu-He
%A Gu Ben-Yuan
%A <br>刘江涛
%A 周云松
%A 王福合
%A 顾本源
%J 物理学报
%D 2004
%I 
%X We have investigated the guide modes in two kinds of two_dimensional photonic crystal heterostructures by using the plane wave expansion method combined with the supercell technique. These heterostructures consist of different air cylinders embedded into host dielectric in different lattices. Namely, One heterostucture is composed of square cylinders in square lattice and hexagon cylinders in triangular lattice (SSTH heterostucture). The other heterostucture is composed of rectangular cylinders in rectangular lattice and circle cylinders in triangular lattice(RRTC heterostucture). We find that the SSTH heterostucture may produce guide modes in absolute photonic band gap (PBG) when introducing relative longitudinal gliding or transverse displacement of the sub_lattices along the interface of the heterostructure. But the RRTC heterostucture can produce guide modes in absolute PBG without any relative longitudinal gliding or transverse displacement. This feature is quite different from other pure dielectric photonic crystals heterostructures.
%K photonic crystal
%K heterostructure
%K guide modes
%K supercell<br>光子晶体
%K 异质结
%K 传导模
%K 超原胞
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=FB656E9DE79EC658&yid=D0E58B75BFD8E51C&vid=8E6AB9C3EBAAE921&iid=B31275AF3241DB2D&sid=2361597FE1CEC89F&eid=2F9DAF60B46325CC&journal_id=1000-3290&journal_name=物理学报&referenced_num=7&reference_num=17