Spontaneous emission of a three-level lambda-type atom coupled to separate reservoirs

Spontaneous emission of a three-level lambda-type atom coupled to separate reservoirs
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耦合到单独储存器的三能级 lambda 型原子的自发发射

DOI:
10.1016/j.optcom.2008.11.003
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发表时间:
2009-03
影响因子:
2.4
通讯作者:
Sun XD
Sun XD
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Jiang XQ;Sun XD

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考虑各向异性色散模型,使用解析算子研究了耦合到单独储库的具有两个跃迁的三能级 lambda 型原子的上态布居和自发发射光谱。当衰减率为零且一个跃迁频率位于带隙内时,上态布居在弱振荡后达到稳态值。给出了与每个跃迁相关的光谱。与利用各向同性色散模型得到的结果相比,光谱形状发生了明显变化,光谱中没有出现暗线。
Considering the anisotropic dispersion model, the upper state population and spontaneous emission spectrum of three-level lambda-type atom with two transitions coupled to separate reservoirs are investigated using the resolvent operator. The upper state population reaches to a steady state value after a weak oscillation when the decay rate is zero and one transition frequency is inside the bandgap. The spectrum associated with each transition was given. Compared with results that were obtained by using isotropic dispersion model, the shape of spectrum changes significantly, and no dark line appears in the spectra.
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