Reverse-saturated absorption and narrow line in the absorption spectrum of a V-type three-level medium
Dong, P. Tang, S.H.
Dong, P.
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Abstract
We study the absorption spectrum of a V-type three-level atom when the laser beam interacts only with one of its two transitions. With the presence of vacuum-induced quantum interference, the absorption spectrum shows some new interesting features, which include ultranarrow absorption line, transparency, and a reverse-saturated absorption that is characterized by a larger absorption with increasing laser intensity. © 2001 Elsevier Science B.V. All rights reserved.
Keywords
Atomic coherence, Narrow line, Quasi-trapped state, Reverse-saturated absorption, Vacuum-induced interference
Source Title
Physics Letters, Section A: General, Atomic and Solid State Physics
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Series/Report No.
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Date
2001-11-19
DOI
10.1016/S0375-9601(01)00675-2
Type
Article