Ultrasharp lines without the rotating wave approximation

We study the effects of the non-rotating wave approximation (non-RWA) on the spontaneous emission of a Lambda-type three-level atom, where the metastable states are coupled to a common excited state by a weak laser field and the lower-level doublet is driven by a strong microwave field. When the non...

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Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2008-07, Vol.41 (14), p.145505-145505 (5)
Main Authors: Xu, Qing, Hu, Xiang-ming, Yin, Jian-wu
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optics
Physics
Quantum description of interaction of light and matter
related experiments
Quantum optics
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Summary:We study the effects of the non-rotating wave approximation (non-RWA) on the spontaneous emission of a Lambda-type three-level atom, where the metastable states are coupled to a common excited state by a weak laser field and the lower-level doublet is driven by a strong microwave field. When the non-RWA is applied to the interaction of the atom with the microwave field, the spontaneous emission spectrum is comprised of a series of ultrasharp lines. The physical interpretation of the spectral characteristics is given in light of the dressed states.
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/41/14/145505