%0 Journal Article
%T Photonic band structures of two-dimensional photonic crystals with deformed lattices
%A Cai Xiang-Hu
%A Zheng Wan-Hu
%A Ma Xiao-Tao
%A Ren Gang
%A Xia Jian-Bai
%A <br>蔡向华
%A 郑婉华
%A 马小涛
%A 任　刚
%A 夏建白
%J 中国物理 B
%D 2005
%I 
%X Using the plane-wave expansion method, we have calculated and analysed the changes of photonic band structures arising from two kinds of deformed lattices, including the stretching and shrinking of lattices. The square lattice with square air holes and the triangular lattice with circular air holes are both studied. Calculated results show that the change of lattice size in some special ranges can enlarge the band gap, which depends strongly on the filling factor of air holes in photonic crystals; and besides, the asymmetric band edges will appear with the broken symmetry of lattices.
%K photonic band gap
%K photonic crystal
%K plane-wave expansion method<br>光子带
%K 二维光子晶体
%K 断面格
%K 平面波扩散法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=5ED594645FAD384ABBCBFBC9383D5F42&yid=2DD7160C83D0ACED&vid=F3583C8E78166B9E&iid=59906B3B2830C2C5&sid=87A4D5C6B6E026A9&eid=75359DB37CA6AEF5&journal_id=1009-1963&journal_name=中国物理&referenced_num=2&reference_num=33