Vacuum-induced suppression and enhancement of four-wave mixing in an optical cavity

被引：2
|
作者：
Chen, Haixia [1 ,2 ]
Wang, Xiuxiu [1 ,2 ]
Ahmed, Irfan [1 ,2 ]
Yao, Xin [1 ,2 ]
Wu, Zhenkun [1 ,2 ]
Zhu, Dayu [1 ,2 ]
Zhang, Yanpeng [1 ,2 ]
机构：
[1] Xi An Jiao Tong Univ, Minist Educ, Key Lab Phys Elect & Devices, Xian 710049, Peoples R China
[2] Xi An Jiao Tong Univ, Shaanxi Key Lab Informat Photon Tech, Xian 710049, Peoples R China
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2015年 / 120卷 / 04期
基金：
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词：
ELECTROMAGNETICALLY INDUCED TRANSPARENCY; ATOM; SWITCH; MEDIA;
D O I：
10.1007/s00340-015-6194-x
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on an experimental study of vacuum-induced suppression and enhancement of four-wave mixing (FWM) signal in a composite atom-cavity system. By scanning the additional dressing field, the suppression ratio of the FWM signal can reach 90 % compared with 40 % without cavity. We attribute the enhanced suppression and enhancement to the atom-cavity coupling arising from a vacuum-induced Raman process, which amplifies the dressing effect from the additional field. Also, the dressing asymmetry of the atom-cavity coupling is discussed and used to estimate the nonlinearity of atomic medium in the cavity. The suppression and enhancement can be interpreted by a dressed-state picture and agree with theoretical calculations. The investigation may find applications in optical switch and quantum memory controlled by cavity.
引用
收藏
页码：765 / 771
页数：7
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