Theoretical study of enhancement and suppression of the fluorescent spectra of dye molecules in a photonic crystal with a pseudogap
Liu Xiao-Dong (刘晓东)ab, Xu Xing-Sheng (许兴胜)a, Wang Yi-Quan (王义全)a, Zhang Dao-Zhong (张道中)a, Cheng Bing-Ying (程丙英)a,
a Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; b Department of Mechanical, Electric and Information Engineering, Dalian Nationality University, Dalian 116600, China
Abstract 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.
Received: 17 February 2003
Revised: 12 May 2003
Accepted manuscript online:
Fund: Project supported by the National Key Basic Research Special Foundation of China (Grant No 2001CB610402), and the National Natural Science Foundation of China (Grant No 60078007).
Cite this article:
Liu Xiao-Dong (刘晓东), Xu Xing-Sheng (许兴胜), Wang Yi-Quan (王义全), Zhang Dao-Zhong (张道中), Cheng Bing-Ying (程丙英) Theoretical study of enhancement and suppression of the fluorescent spectra of dye molecules in a photonic crystal with a pseudogap 2003 Chinese Physics 12 992
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