1 山西大学物理电子工程学院, 山西 太原 030006
2 山西医科大学基础医学院, 山西 太原 030001
基于铯原子( 133Cs)6S1/2-6P3/2-6D5/2阶梯型原子系统,将波长为852.335 nm或852.356 nm的泵浦光与波长为917.483 nm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。
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 激光与光电子学进展
2020, 57(3): 030202
Author Affiliations
Abstract
1 College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China
2 State Key Laboratory of Quantum Optics and Quantum Optics Devices and Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
An experimental investigation of two-color polarization spectroscopy (TCPS) is presented based on the cesium 6S1/2 – 6P3/2 – 8S1/2 (852.3 nm + 794.6 nm) ladder-type system in a room-temperature vapor cell. The dependency of line shapes of TCPS on the power of a 852.3 nm pump and a 794.6 nm probe laser is measured in detail, and we confirm that the linewidth of TCPS in a counter-propagating configuration between the pump and probe laser beams is obviously narrower than that of a co-propagating configuration, due to the atomic coherence effect. It is helpful for laser stabilization of the excited state transition using TCPS without frequency modulation.
300.6210 Spectroscopy, atomic 020.1670 Coherent optical effects 020.3690 Line shapes and shifts 300.3700 Linewidth Chinese Optics Letters
2019, 17(9): 093001
