Open AccessOptical bistability via active Raman gain in an n-type atomic medium
Author(s) -
Yang Jin-Jin,
Huijun Li,
Wen Wen,
Huang Guo-Xiang
Publication year - 2012
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.61.224204
Subject(s) - multistability , optical bistability , bistability , realization (probability) , atomic system , optoelectronics , raman spectroscopy , physics , materials science , atomic physics , optics , nonlinear optics , laser , quantum mechanics , nonlinear system , statistics , mathematics
We study the optical bistability (OB) in an active Raman gain atomic medium by means of a unidirectional ring cavity. The system considered is a resonant n-type four-level atomic ensemble, which can be realized at room temperature and not only have a lot of tunable parameters, such as detuning, atomic concentration, pump and control field, but also possess gain-free (or little gain) transparent windows. We discuss the conditions and the range of these parameters for realizing OB, and also the condition for realizing optical multistability. Our results will provide the theoretical basis for experimental realization.