An Ultraviolet Fiber Fabry-Perot Cavity for Florescence Collection of Trapped Ions  

作　　者：周坤 崔金明 黄运锋 王钊 钱忠华 伍启明 王健 贺冉 吕为民 胡长康 韩永建 李传锋 郭光灿 

机构地区：[1]Key Laboratory of Quantum Information, University of Science and Technology of China,Chinese Academy of Sciences [2]Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China

出　　处：《Chinese Physics Letters》2017年第1期40-43,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11274289,11325419,11474267,11404319,61327901,61225025 and 1147426;the Fundamental Research Funds for the Central Universities under Grant Nos WK2470000018 and WK2030020019;the Strategic Priority Research Program(B)of the Chinese Academy of Sciences under Grant No XDB01030300;the National Youth Top Talent Support Program of National High-level Personnel of Special Support Program under Grant No BB2470000005;the Anhui Provincial Natural Science Foundation under Grant No 1608085QA22

摘　　要：We demonstrate a fiber Fabry-Pérot cavity in the ultraviolet range, which covers the florescence wavelength for the ²P to ²S transition of Yb and is designed in the bad cavity limit for florescence collection. Benefiting from both the small cavity mode volume and the large atom dipole, a cavity with moderate finesse and high transmission still supports a good cooperativity, which is made and tested in experiment. Based on the measured experimental parameters, simulation performed on the cavity and ion shows a Purcell factor better than 2.5 and a single-mode fiber collection efficiency over 10%. This technology can support ultra-bright single photon sources based on trapped ions and can provide the possibility to link remote atoms as a quantum network.We demonstrate a fiber Fabry-Pérot cavity in the ultraviolet range, which covers the florescence wavelength for the ²P to ²S transition of Yb and is designed in the bad cavity limit for florescence collection. Benefiting from both the small cavity mode volume and the large atom dipole, a cavity with moderate finesse and high transmission still supports a good cooperativity, which is made and tested in experiment. Based on the measured experimental parameters, simulation performed on the cavity and ion shows a Purcell factor better than 2.5 and a single-mode fiber collection efficiency over 10%. This technology can support ultra-bright single photon sources based on trapped ions and can provide the possibility to link remote atoms as a quantum network.

关 键 词：An Ultraviolet Fiber Fabry-Perot Cavity for Florescence Collection of Trapped Ions 

分 类 号：O562[理学—原子与分子物理]