Optical bistability induced by quantum coherence in a negative index atomic medium

Author: Hong-Jun Zhang   Hong-Ju Guo   Hui Sun   Jin-Ping Li   Bao-Yin Yin  

Publisher: IOP Publishing

E-ISSN: 1741-4199|22|10|104208-104211

ISSN: 1674-1056

Source: Chinese Physics B, Vol.22, Iss.10, 2013-10, pp. : 104208-104211

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Abstract

Bistability behaviors in an optical ring cavity filled with a dense V-type four-level atomic medium are theoretically investigated. It is found that the optical bistability can appear in the negative refraction frequency band, while both the bistability and multi-stability can occur in the positive refraction frequency bands. Therefore, optical bistability can be realized from conventional material to negative index material due to quantum coherence in our scheme.