%0 Journal Article
%T Investigation on abnormal group velocities in 1D coaxial photonic crystals
%A Yuanwei Tong
%A Yewen Zhang
%A Li He
%A Hongqiang Li
%A Hong Chen
%A <br>TONG
%A Yuanwei
%A ZHANG
%A Yewen
%A HE
%A Li
%A LI
%A Hongqiang
%A CHEN
%A Hong
%J 科学通报(英文版)
%D 2006
%I 
%X In this paper, the group velocities of electromagnetic wave for a one-dimensional coaxial photonic crystal in the stop bands with and without defect mode are studied. The results show that the group velocities exceed c (the speed of light in vac- uum) in the stop band and it tends to be very slow in the defect mode. The group velocities also are ob- tained using the method of the transmission line and transmission matrix. The simulating results agree well with the experimental.
%K coaxial photonic crystals
%K group velocity
%K superluminal
%K subluminal<br>同轴晶体
%K 群速度
%K 超光速
%K 固体物理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=6D4A42909CFC8A25B7F780262B9B58B6&yid=37904DC365DD7266&vid=987EDA49D8A7A635&iid=708DD6B15D2464E8&sid=4CBFE0C7AFFA0387&eid=F7C51083F4D893E5&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=1&reference_num=15