中国物理B ›› 2005, Vol. 14 ›› Issue (2): 323-330.doi: 10.1088/1009-1963/14/2/018

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Spontaneous emission spectrum of a four-level atom in a double-band photonic crystal

王健, 杨冬, 张汉壮   

  1. College of Physics, Jilin University, Changchun 130023, China
  • 收稿日期:2003-10-16 修回日期:2004-09-30 出版日期:2005-03-02 发布日期:2005-03-02
  • 基金资助:
    Project supported by the Scientific Research Foundation of the State Education Ministry for Chinese Scholars, China, and the Innovative Research Foundation of Jilin University.

Spontaneous emission spectrum of a four-level atom in a double-band photonic crystal

Wang Jian (王健), Yang Dong (杨冬), Zhang Han-Zhuang (张汉壮)   

  1. College of Physics, Jilin University, Changchun 130023, China
  • Received:2003-10-16 Revised:2004-09-30 Online:2005-03-02 Published:2005-03-02
  • Supported by:
    Project supported by the Scientific Research Foundation of the State Education Ministry for Chinese Scholars, China, and the Innovative Research Foundation of Jilin University.

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摘要： The spontaneous emission spectrum from a four-level atom in a double-band photonic crystal has been investigated. We use the model which assumes three atomic transitions. One of the transitions interacts with the free vacuum modes, and the other two transitions couple to the modes of the isotropic photonic band gap (PBG), the anisotropic PBG and another free vacuum. The effects of the fine structure of the lower levels on the spontaneous emission spectrum of an atom are investigated in detail in the three cases. New features of four (two) transparencies with two (one) spontaneous emission peaks, resulting from the fine structure of the lower levels of an atom, are predicted in the case of isotropic PBG modes.

Abstract: The spontaneous emission spectrum from a four-level atom in a double-band photonic crystal has been investigated. We use the model which assumes three atomic transitions. One of the transitions interacts with the free vacuum modes, and the other two transitions couple to the modes of the isotropic photonic band gap (PBG), the anisotropic PBG and another free vacuum. The effects of the fine structure of the lower levels on the spontaneous emission spectrum of an atom are investigated in detail in the three cases. New features of four (two) transparencies with two (one) spontaneous emission peaks, resulting from the fine structure of the lower levels of an atom, are predicted in the case of isotropic PBG modes.

Key words: photonic band gap, spontaneous emission

中图分类号:  (Photonic bandgap materials)

  • 42.70.Qs
42.50.-p (Quantum optics) 32.50.+d (Fluorescence, phosphorescence (including quenching)) 32.10.Fn (Fine and hyperfine structure)