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Vacuum Induced Suppression and Enhancement of Four-wave Mixing in an Optical Cavity
Chen Haixia #,Zhang Yanpeng *
Key Laboratory for Physical Electronics and Devices of the Ministry of Education , Xi’an Jiaotong University, Xi’an 710049, China
*Correspondence author
#Submitted by
Subject:
Funding: Research Fund for the Doctoral Program of Higher Education of China （No.20110201120005）
Opened online:15 December 2014
Accepted by: none
Citation: Chen Haixia,Zhang Yanpeng.Vacuum Induced Suppression and Enhancement of Four-wave Mixing in an Optical Cavity[OL]. [15 December 2014] http://en.paper.edu.cn/en_releasepaper/content/4622084
 
 
We report on an experimental study of vacuum-induced suppression and enhancement of four-wave mixing (FWM) signal in a composite atom-cavity system. The suppression ratio of the FWM signal can reach ninety percent. We attribute the suppression and enhancement to the atom-cavity coupling arising from a vacuum-induced Raman process. 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.
Keywords:Nonlinear optics, four-wave mixing, optical cavity, suppression and enhancement
 
 
 

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