中国物理B ›› 2004, Vol. 13 ›› Issue (9): 1407-1413.doi: 10.1088/1009-1963/13/9/007

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

温庆波, 王健, 张汉壮   

  1. College of Physics, Jilin University, Changchun 130023, China
  • 收稿日期:2004-03-12 修回日期:2004-05-24 出版日期:2004-06-21 发布日期:2005-06-21
  • 基金资助:
    Project supported by the Scientific Research Foundation for the Returned Chinese Scholars, State Education Ministry, China.

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

Wen Qing-Bo (温庆波), Wang Jian (王健), Zhang Han-Zhuang (张汉壮)   

  1. College of Physics, Jilin University, Changchun 130023, China
  • Received:2004-03-12 Revised:2004-05-24 Online:2004-06-21 Published:2005-06-21
  • Supported by:
    Project supported by the Scientific Research Foundation for the Returned Chinese Scholars, State Education Ministry, China.

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摘要： 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.

关键词: photonic band gap, probe absorption spectrum

Abstract: 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 $\Lambda$-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.

Key words: photonic band gap, probe absorption spectrum

中图分类号:  (Photonic bandgap materials)

  • 42.70.Qs
32.10.Fn (Fine and hyperfine structure) 32.30.-r (Atomic spectra?) 32.70.Jz (Line shapes, widths, and shifts)