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物理学报. 2005, 54(5): 2059-2065.
doi: 10.7498/aps.54.2059.
低频强场作用下三维光子晶体中二能级原子的自发辐射性质
- 收稿日期: 2004-06-08
- 修回日期: 2004-09-17
- 刊出日期: 2005-05-10
English Abstract
Spontaneous emission properties of a two-level atom with an intense low-frequency field in a three-dimensional photonic crystal
- Received Date:
08 June 2004
- Accepted Date:
17 September 2004
- Published Online:
10 May 2005
Abstract: We have investigated spontaneous emissions from a two-level atom embedded in a p hotonic crystal with three-dimensional dispersion relation as well as interacted with a coherent intense low-frequency field .Due to this field, additional deca y channels with exchange of one low-frequency photon during an atomic transition are created, resulting in the spontaneously induced quantum interference. The s pontaneous emission can be suppressed significantly because of the combinational influences of the quantum interference effect and the band edge effect. The pop ulation in the upper levels depends on the relative position of the upper level from the band edge. The frequency of the low-frequency field and the relative in tensity of the coupling strength for the transitions can affect spontaneous emis sion from the atom.
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Keywords:
- photonic crystal /
- two-level atom /
- spontaneous emission
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