Chinese Optics Letters, Vol. 3, Issue 5, 05308 (2005)
Effect of vacuum-induced coherence on lasing without inversion in an equispaced three-level ladder system
Jun Qian*, Chengpu Liu, and Shangqing Gong
- State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
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.