%0 Journal Article
%T Large Absolute Band Gaps of 2D Photonic Crystals<br>大带隙二维光子晶体结构的研究
%A LU Hui
%A TIAN Hui-ping
%A LI Chang-hong
%A JI Yue-feng
%A <br>鲁辉
%A 田慧平
%A 李长红
%A 纪越峰
%J 光子学报
%D 2009
%I 
%X For three types of conventional 2D photonic crystals with medium column’s cross sections’ shapes of hexagon,square and circular,a method that decreases the length in X direction to be p times and rotates shapes with angle φ for increasing the PBG of the photonic crystals was brought forward.The symmetry of the structures were decreased through changing the values of p and φ.With simulation using planar wave expansion method,the results were show that max PBG rate can reach above 12%,due to the photonic crystals of the three types of medium column with triangular lattice.Especially for photonic crystals of rectangle column with triangular lattice,the max PBG rate arrives at 15.1%.
%K Photonic crystal
%K Medium column
%K PWE method
%K Rotary angle
%K PBG rate<br>光子晶体
%K 介质柱
%K 平面波展开法
%K 旋转角
%K 带隙率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=F368D33D3A8F3AF16A3315240EE04BB5&yid=DE12191FBD62783C&vid=16D8618C6164A3ED&iid=B31275AF3241DB2D&sid=8FB078CA6698CB38&eid=782B98DFA363AFCB&journal_id=1004-4213&journal_name=光子学报&referenced_num=1&reference_num=20