Theoretical study of enhancement and suppression of the fluorescent spectra of dye molecules in a photonic crystal with a pseudogap

被引:10
|
作者
Liu, XD
Xu, XS
Wang, YQ
Zhang, DZ
Cheng, BY
机构
[1] Chinese Acad Sci, Inst Phys, Lab Opt Phys, Beijing 100080, Peoples R China
[2] Dalian Nationality Univ, Dept Mech Elect & Informat Engn, Dalian 116600, Peoples R China
来源
CHINESE PHYSICS | 2003年 / 12卷 / 09期
关键词
photonic crystal; spontaneous emission; density of states; pseudogap;
D O I
10.1088/1009-1963/12/9/312
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have investigated the analytical forms of the photonic density of states (DOS) in a photonic crystal in the interested frequency regime according to the rule of state conservation in a photonic crystal with pseudogaps, which states that, if a valley of the DOS appears in some range of frequencies, it must be compensated for by increasing over some other ranges. By using a model DOS with a state-conservative photonic pseudogap, we have also investigated the enhancement and suppression of spontaneous emission of two-level atoms with different frequency positions and widths of emission spectra in a state-conservative electromagnetic reservoir; and the DOS-induced suppression, enhancement, narrowing and redshifting or blueshifting of spontaneous emission spectra are naturally obtained.
引用
收藏
页码:992 / 996
页数:5
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