摘要
基于铯原子(133Cs)6S1/2-6P3/2-6D5/2阶梯型原子系统,将波长为852.335nm或852.356nm的泵浦光与波长为917.483nm的探测光反向布局于室温下的铯原子气室中,获得了窄线宽、高信噪比的6P3/2-6D5/2超精细能级跃迁的双共振吸收光谱。利用声光调制器建立的"标尺",可测得激发态6D5/2超精细能级分裂结构的全部频率间隔,进而得到该态的磁偶极超精细常数Ahfs为(-4.59±0.06)MHz,电四极超精细常数Bhfs为(-0.78±0.66)MHz,这与相关文献报道的结果一致。
Based on the ladder-type atomic system of cesium(133Cs)6S1/2-6P3/2-6D5/2,apump light with a wavelength of 852.335nm or 852.356nm and probe light with a wavelength of 917.483nm were inversely arranged in a 133Cs vapor cell at room temperature.Accordingly,a double resonance absorption spectrum of 6P3/2-6D5/2 hyperfine energy level transition with narrow line-width and high signal-to-noise ratio is obtained.Subsequently,all the frequency intervals of the hyperfine energy level splitting structure of the excited state 6D5/2 are measured using a"ruler"built with an acousto-optic modulator.Finally,the hyperfine constants of magnetic dipole Ahfsand electric quadrupole Bhfsare obtained as(-4.59±0.06)and(-0.78±0.66)MHz,respectively,which agree with values reported in the literature.
作者
王志宏
张锦芳
曾昭卿
闫奎志
周海涛
杨保东
Wang Zhihong;Zhang Jinfang;Zeng Zhaoqing;Yan Kuizhi;Zhou Haitao;Yang Baodong(College of Physics and Electronic Engineering,Shanxi University,Taiyuan,Shanxi 030006,China;School of Basic Medical Sciences,Shanxi Medical University,Taiyuan,Shanxi 030001,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2020年第3期73-79,共7页
Laser & Optoelectronics Progress
基金
国家自然科学基金(11774210,61575112,61975102)
国家重点研发计划(2017YFA0304502)
山西省高等学校科技创新项目(2019L0101)。
关键词
原子与分子物理学
超精细能级分裂
双共振吸收光谱
量子相干
窄线宽
atomic and molecular physics
hyperfine energy level splitting
double resonance absorption spectrum
quantum coherence
narrow line-width
