文献类型：期刊文献

中文题名：Tunable interaction-free all-optical switching in a five-level atom-cavity system

英文题名：Tunable interaction-free all-optical switching in a five-level atom-cavity system

作者：Liu, Tiantian[1];Lin, Gongwei[1];Zhou, Fengxue[1];Deng, Li[1];Gong, Shangqing[1];Niu, Yueping[1]

机构：[1]East China Univ Sci & Technol, Coll Phys, Shanghai 200237, Peoples R China

年份：2017

卷号：15

期号：9

中文期刊名：Chinese Optics Letters

外文期刊名：CHINESE OPTICS LETTERS

收录：CSTPCD;;EI(收录号：20174704440974);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000410143200022)】；CSCD:【CSCD2017_2018】；PubMed;

基金：This work was supported by the National Natural Sciences Foundation of China (Nos. 11674094, 11274112, 91321101, and 61275215) and the Fundamental Research Funds for the Central Universities (No. WM1313003).

语种：英文

中文关键词：Tunable interaction-free all-optical switching in a five-level atom-cavity system

外文关键词：Atoms - Switching - Optical switches

摘要：A scheme is proposed for tunable all-optical switching based on the double-dark states in a five-level atom-cavity system. In the scheme, the output signal light of the reflection and the transmission channels can be switched on or off by manipulating the control field. When the control light is coupled to the atom-cavity system, the input signal light is reflected by the cavity. Thus, there is no direct coupling between the control light and the signal light. Furthermore, the position of the double-dark states can be changed by adjusting the coherent field, and,thus, the switching in our scheme is tunable. By presenting the numerical calculations of the switching efficiency,we show that this type of the interaction-free all-optical switching can be realized with high switching efficiency.
A scheme is proposed for tunable all-optical switching based on the double-dark states in a five-level atom-cavity system. In the scheme, the output signal light of the reflection and the transmission channels can be switched on or off by manipulating the control field. When the control light is coupled to the atom-cavity system, the input signal light is reflected by the cavity. Thus, there is no direct coupling between the control light and the signal light. Furthermore, the position of the double-dark states can be changed by adjusting the coherent field, and, thus, the switching in our scheme is tunable. By presenting the numerical calculations of the switching efficiency, we show that this type of the interaction-free all-optical switching can be realized with high switching efficiency.