%0 Journal Article
%T Focusing Properties in Photonic Crystal Structure Formed by Air Holes in Dielectric Background with Concave Interface
%A JIAN Zhi-Jian
%A PENG Jing-Cui
%A ZHOU Ren-Long
%A <br>翦知渐
%A 彭景翠
%A 周仁龙
%J 中国物理快报
%D 2006
%I 
%X We investigate the focusing properties of photonic crystal structures with a concavo-concave as the photonic crystal boundary. The photonic crystal is constituted by air holes parallelly distributed in a uniform dielectric. A good-quality focus of a plane wave can appear out of the photonic crystal structure, and a strong far field focus is also formed from the photonic crystal interface. A negative-refractive beam at the frequency 0.195 （2πc/α） for the excited Bloch wave mode near the Brillouin zone edges under all incident angles are obtained by simulation.
%K 78
%K 20
%K Ci
%K 41
%K 20
%K Jb
%K 42
%K 70
%K Qs<br>凹界面
%K 光子晶体
%K 晶体结构
%K 空气孔
%K 介电本底
%K 聚焦性质
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=2A09AB1B48422E94A7637958E03ED50F&yid=37904DC365DD7266&vid=EA389574707BDED3&iid=59906B3B2830C2C5&sid=6194E4B8446DFA90&eid=640EDF7A3E3A3539&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=29