Open AccessTIME EVOLUTION OF ATOMIC RESPONSE AND LIGHT AMPLIFICATION MECHANISM IN AN OPEN I NVERSIONLESS LASING SYSTEM
Author(s) -
Fan Xi-Jun,
Tian Shu-Fen,
Jian Li,
Jie Liu,
Chunli Bai
Publication year - 2000
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.49.1719
Subject(s) - mechanism (biology) , lasing threshold , atomic physics , materials science , physics , optics , laser , quantum mechanics
We study the law of time evolution of atomic response in an open Λ-type inversi onless lasing system,elucidate the light amplification mechanism without inversi on,and find that the character of the time evolution of atomic response in an open system is obviously different from that in a corresponding closed system. Weconsider that the variation of the oscillation frequency and anharmonic oscillat ion in the process of time evolution originate from the stochastic coherence pro perty of atom oscillators in the system.