%0 Journal Article
%T Quntum interference of four-level atomic system embedded in photonic band gap structure<br>光子晶体中四能级系统的量子相干效应
%A Fang Yuan-Feng
%A Du Chun-Guang
%A Li Shi-Qun
%A <br>房元锋
%A 杜春光
%A 李师群
%J 物理学报
%D 2006
%I 
%X We study the steady and transient optical properties of electromagnetically induced transparency(EIT),spontaneous emission,and the photonic switching for a four-level atomic system embedded in photonic band gap(PBG) structures. The theoretical analysis shows that a special density of modes (DOM) can induce abnormal spectrum of absorption,dispersion,spontaneous emission and transient gain without inversion,and they can be controlled by an externally applied coherent light. Furthermore,we discuss the effects of the nonsingular DOM on the EIT windows and on the photon switch in detail.
%K photonic band gap structures
%K electromagnetically induced transparency
%K density of modes
%K photon switching<br>光子带隙材料
%K 电磁感应透明
%K 模密度
%K 光子开关
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=54D07820587968EE&yid=37904DC365DD7266&vid=E514EE58E0E50ECF&iid=9CF7A0430CBB2DFD&sid=528AF3E71ECF5D97&eid=17EE79B5DE05E1FF&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=18