Background-Free Doppler Cooling of Trapped Ions Using Quadrupole Transition  

作　　者：ZHOU Fei XIE Yi CHEN Liang WAN Wei WU Hao-Yu FENG Mang 周飞;谢艺;陈亮;万威;吴浩煜;冯芒(State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences,Wuhan 430071;University of Chinese Academy of Sciences,Beijing 100049)

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,Wuhan 430071 [2]University of Chinese Academy of Sciences,Beijing 100049

出　　处：《Chinese Physics Letters》2013年第3期47-50,共4页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program of China under Grant No 2012CB922102;the National Natural Science Foundation of China under Grant Nos 10974225,11104325。

摘　　要：We demonstrate experimentally the Doppler cooling of ^(40)Ca^(+) ions using the S_(1/2)→D_(3/2) electric quadrupole transition,in which the scattering light that is much different from the exciting light makes it possible to collect background-free fluorescence.The idea excluding 397 nm excitation has the advantage of high-sensitivity detection and only employs lasers in red and infrared wavelengths,which should be practical for trapped-ion quantum information processing.

关 键 词：SCATTERING TRANSITION DOPPLER 

分 类 号：TN2[电子电信—物理电子学]