%0 Journal Article
%T Probe spectrum of a four-level atom in a double-band photonic crystal<br>Probe　spectrum　of　a　four-level　atom　in　a　double-band　photonic　crystal
%A Wen Qing-Bo
%A Wang Jian
%A Zhang Han-Zhuang
%A <br>温庆波
%A 王健
%A 张汉壮
%J 中国物理 B
%D 2004
%I 
%X In this paper, the probe absorption spectrum of an atom in a double-band photonic crystal have been studied. In the modes, we assume that one of the two atomic transitions in a Λ-type atomic system is interacting with free vacuum modes, and another transition is interacting with free vacuum modes, isotropic photonic band gap (PBG) modes and anisotropic PBG modes, separately. The effects of the fine structure of the atomic lower levels on the probe absorption spectrum are investigated in detail in the three cases. The most interesting thing is that the two (four) transparencies at one (two) probe absorption peak(s), caused by the fine structure of the lower levels of an atom, are predicted in the case of isotropic PBG modes.
%K photonic band gap
%K probe absorption spectrum<br>光子带隙
%K 探针吸收光谱
%K 四层原子结构
%K 双带光子晶体
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=8A163C037A4F1159F043BE2EBDE44452&yid=D0E58B75BFD8E51C&vid=FC0714F8D2EB605D&iid=9CF7A0430CBB2DFD&sid=7B26CB38602C6F44&eid=E645E14F118D0796&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=20