Chinese Optics Letters, Volume. 3, Issue 5, 05308(2005)
Effect of vacuum-induced coherence on lasing without inversion in an equispaced three-level ladder system
The effects of vacuum-induced coherence (VIC) on the properties of the absorption and gain of the probe field in an equispaced three-level ladder atomic system are investigated. It is found that lasing without inversion (LWI) is remarkably enhanced due to the effect of VIC in the case of the small incoherent pump rate.
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Jun Qian, Chengpu Liu, Shangqing Gong, "Effect of vacuum-induced coherence on lasing without inversion in an equispaced three-level ladder system," Chin. Opt. Lett. 3, 05308 (2005)
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