Spectra of 42S1/2→32D5/2 Transitions of a Single Trapped 40Ca+ Ion  

作　　者：龚诗杰 周飞 吴浩煜 万威 陈亮 冯芒 

机构地区：[1]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences [2]University of the Chinese Academy of Sciences

出　　处：《Chinese Physics Letters》2015年第1期39-41,共3页中国物理快报（英文版）

基　　金：Supported by the National Fundamental Research Program of China under Grant No 2012CB922102;the National Natural Science Foundation of China under the Grant Nos 11274352 and 11104325

摘　　要：We investigate the spectra of the electric quadrupole 42^S1/2→3^2D5/2 transitions in a single 40^Ca＋ ion confined in a home-built linear trap. We probe the transitions with an ultra-narrow bandwidth laser at 729nm. In a weak magnetic field, the quadrupole transition splits into ten components with the maximal line strength proportional to their squared Clebsch-Gordan factors. In a magnetic field of the order of Gauss, the observed equidistant sideband reflects the Zeeman substructure modulated by the quantized oscillation due to the secular motion in the trap. The temperature of the trapped ion can be determined by the envelope of the sideband spectrum. We also demonstrate the Rabi oscillation in a carrier transition after the ion has been Doppler cooled, which can be fitted by the model with the thermal state of motion.We investigate the spectra of the electric quadrupole 42^S1/2→3^2D5/2 transitions in a single 40^Ca＋ ion confined in a home-built linear trap. We probe the transitions with an ultra-narrow bandwidth laser at 729nm. In a weak magnetic field, the quadrupole transition splits into ten components with the maximal line strength proportional to their squared Clebsch-Gordan factors. In a magnetic field of the order of Gauss, the observed equidistant sideband reflects the Zeeman substructure modulated by the quantized oscillation due to the secular motion in the trap. The temperature of the trapped ion can be determined by the envelope of the sideband spectrum. We also demonstrate the Rabi oscillation in a carrier transition after the ion has been Doppler cooled, which can be fitted by the model with the thermal state of motion.

关 键 词：KHZ FIGURE Spectra of 4~2S Transitions of a Single Trapped Ca 

分 类 号：TN248[电子电信—物理电子学] O413[理学—理论物理]