中国物理B ›› 2003, Vol. 12 ›› Issue (9): 992-996.doi: 10.1088/1009-1963/12/9/312

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

许兴胜1, 王义全1, 张道中1, 程丙英1, 刘晓东2   

  1. (1)Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; (2)Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; Department of Mechanical, Electric and Information Engineering, Dalian Nationality University, Dalian 116600, China
  • 收稿日期:2003-02-17 修回日期:2003-05-12 出版日期:2003-09-16 发布日期:2005-03-16
  • 基金资助:
    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).

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,    

  1. 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
  • Received:2003-02-17 Revised:2003-05-12 Online:2003-09-16 Published:2005-03-16
  • Supported by:
    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).

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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.

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.

Key words: photonic crystal, spontaneous emission, density of states, pseudogap

中图分类号:  (Photonic bandgap materials)

  • 42.70.Qs
33.50.Dq (Fluorescence and phosphorescence spectra) 78.55.Kz (Solid organic materials) 33.70.Jg (Line and band widths, shapes, and shifts)