期刊文献+

Nonlinear spectroscopy of three-photon excitation of cesium Rydberg atoms in vapor cell 被引量:1

原文传递
导出
摘要 We present nonlinear spectra of four-level ladder cesium atoms employing 6 S1/2→6 P3/2→7 S1/2→30 P3/2 scheme of a room temperature vapor cell.A coupling laser drives Rydberg transition,a dressing laser couples two intermediate levels,and a probe laser optically probes the nonlinear spectra via electromagnetically induced transparency(EIT).Nonlinear spectra are detected as a function of coupling laser frequency.The observed spectra exhibit an enhanced absorption(EA) signal at coupling laser resonance to Rydberg transition and enhanced transmission(ET) signals at detunings to the transition.We define the enhanced absorption(transmission) strength,HEA(HET),and distance between two ET peaks,γET,to describe the spectral feature of the four-level atoms.The enhanced absorption signal HEA is found to have a maximum value when we vary the dressing laser Rabi frequency Ωd,corresponding Rabi frequency is defined as a separatrix point,ΩdSe.The values of ΩdSe and further η=ΩdSe/Ωc are found to depend on the probe and coupling Rabi frequency but not the atomic density.Based on ΩdSe,the spectra can be separated into two regimes,weak and strong dressing ranges,Ωd≤ΩdSe and Ωd≥QdSe,respectively.The spectroscopies display different features at these two regimes.A four-level theoretical model is developed that agrees well with the experimental results in terms of the probe-beam absorption behavior of Rabi frequency-dependent dressed states.
作者 Jiabei Fan Yunhui He Yuechun Jiao Liping Hao Jianming Zhao Suotang Jia 樊佳蓓;何云辉;焦月春;郝丽萍;赵建明;贾锁堂(State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China)
出处 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第3期300-305,共6页 中国物理B(英文版)
基金 Project supported by the National Key Research and Development Program of China(Grant No.2017YFA0304203) the State Key Program of the National Natural Science of China(Grant Nos.11434007 and 61835007) the National Natural Science Foundation of China(Grant Nos.61675123,61775124,and 11804202) the Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(Grant No.IRT 17R70).
  • 相关文献

同被引文献10

引证文献1

二级引证文献6

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部