Spontaneous emission of an atom in a cavity with nonorthogonal eigenmodes

被引：11
作者：
Cheng, Yuh-Jen [1 ]
机构：
[1] Acad Sinica, Res Ctr Appl Sci, Taipei 11529, Taiwan
[2] Stanford Univ, EL Ginzton Lab, Stanford, CA 94305 USA
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 09期
关键词：
D O I：
10.1103/PhysRevLett.97.093601
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The spontaneous emission of an excited atom in a lossy cavity with nonorthogonal eigenmodes is analyzed. The quantum Langevin formalism is used to describe the dynamics of the spontaneous decay. The analysis shows that the spontaneous decay is modified by the Q value and the effective mode volume factor of each cavity eigenmode. The effective mode volume is generalized for cavities with nonorthogonal modes, which can be a very significant modification in the microcavity regime. It is shown that the spontaneous decay is not enhanced by the excess noise factor as claimed by other analyses.
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页数：4
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