Highly sensitive detection of Rydberg atoms with fluorescence loss spectrum in cold atoms

作     者：Xuerong Shi Hao Zhang Mingyong Jing Linjie Zhang Liantuan Xiao Suotang Jia 师雪荣;张好;景明勇;张临杰;肖连团;贾锁堂

作者机构：State Key Laboratory of Quantum Optics and Quantum Optics DevicesInstitute of Laser SpectroscopyShanxi UniversityTaiyuan 030006China Collaborative Innovation Center of Extreme OpticsShanxi UniversityTaiyuan 030006China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2020年第29卷第1期

页      面：218-222页

核心收录：

学科分类：080901[工学-物理电子学] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 070203[理学-原子与分子物理] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Project supported by the National Key Research and Development Program of China(Grant Nos.2017YFA0304203 and 2016YFF0200104) the National Natural Science Foundation of China(Grant Nos.61505099,61827824,91536110,and 61975104) the Fund for Shanxi ‘1331 Project’ Key Subjects Construction,Bairen Project of Shanxi Province,China 

主　　题：fluorescence loss spectrum Rydberg atoms signal to noise ratio 

摘      要：Fluorescence loss spectrum for detecting cold Rydberg atoms with high sensitivity has been obtained based on lock-in detection of fluorescence of 6 P3/2 state when cooling lasers of the magneto-optical trap are *** experiment results show that the signal to noise ratio has been improved by 32.64 dB when the modulation depth(converted to laser frequency)and frequency are optimized to 4 MHz and 6 kHz,*** technique enables us to perform a highly sensitive non-destructive detection of Rydberg atoms.