2012/10/22 by Jinhua Zou, Zou, Jinhua, Dahai Xu +3
Computer Science · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Laser-Matter Interactions and Applications #Optics (physics.optics) #Quantum Information and Cryptography #Quantum optics and atomic interactions
paper · pdf · doi:10.48550/arxiv.1210.5817
openalex publication_date 2012/10/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Amplitude and phase control of gain without inversion is investigated in a four level loop-structure atomic system. Two features are presented. One is that gain without inversion can be obtained through the amplitude control of the applied fields. The other is that gain without inversion show a phase-dependence on the relative phase between the fields applied on the two two-photon transitions. Gain and phase-dependence originate from interference induced by such a loop-transition structure.