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Deformation control in a high-Q deformed microsphere toward single-directional emission
CUI Jinming 1,DONG Chunhua 1, ZOU Chang-Ling 2,SUN Fangwen 1 *,HAN Zheng-Fu 2,GUO Guang-Can 2
1.Key Laboratory of Quantum Information and Departmentof Optics and Optical Engineering, University of Science andTechnology of China, Chinese Academy of Sciences, HeFei 230026
2. Key Laboratory of Quantum Information and Departmentof Optics and Optical Engineering, University of Science andTechnology of China, Chinese Academy of Sciences, Hefei, Anhui230026, China
*Correspondence author
#Submitted by
Subject:
Funding: National Basic Research Program of China(No.GrantNos.2011CB921203,2011CBA00200), Research Fund for the Doctoral Program of Higher Education of China (No.Grant No. 20103402120009), National Natural Science Foundation of China (No.Grant Nos.11004184)
Opened online:26 September 2012
Accepted by: none
Citation: CUI Jinming,DONG Chunhua, ZOU Chang-Ling.Deformation control in a high-Q deformed microsphere toward single-directional emission[OL]. [26 September 2012] http://en.paper.edu.cn/en_releasepaper/content/4489268
 
 
High-Q deformed silica microsphere cavities are fabricated by short CO2 laser pulse sequence, where the deformation is well controlledby adjusting the intensity and number of pulses. Using this method,directional emission from Whispering-Gallery mode with a high qualityfactor of 10 7 in these microspheres is achieved, and a transition fromtwo-directional to single-directional emission is observed. Suchconcentrated directional emission and high-Q of WGMs show high potentialfor future studies of the chaotic ray dynamics in deformed microcavity and cavity quantum electrodynamics and optomechanics.
Keywords:Deformed microsphere cavity; Whispering-Gallery mode; Directional emission
 
 
 

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