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Chin. Phys. B, 2019, Vol. 28(5): 053202    DOI: 10.1088/1674-1056/28/5/053202
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Rydberg electromagnetically induced transparency and Autler-Townes splitting in a weak radio-frequency electric field

Liping Hao(郝丽萍)1, Yongmei Xue(薛咏梅)1, Jiabei Fan(樊佳蓓)1, Yuechun Jiao(焦月春)1,2, Jianming Zhao(赵建明)1,2, Suotang Jia(贾锁堂)1,2
1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China;
2 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
Abstract  We utilize an electromagnetically induced transparency (EIT) of a three-level cascade system involving Rydberg state in a room-temperature cell, formed with a cesium 6S1/2-6P3/2-66S1/2 scheme, to investigate the Autler-Townes (AT) splitting resulting from a 15.21-GHz radio-frequency (RF) field that couples the|66S1/2>→|65P1/2> Rydberg transition. The radio-frequency electric field induced AT splitting, γAT, is defined as the peak-to-peak distance of an EIT-AT spectrum. The dependence of AT splitting γAT on the probe and coupling Rabi frequency, Ωp and Ωc, is investigated. It is found that the EIT-AT splitting strongly depends on the EIT linewidth that is related to the probe and coupling Rabi frequency in a weak RF-field regime. Using a narrow linewidth EIT spectrum would decrease the uncertainty of the RF field measurements. This work provides new experimental evidence for the theoretical framework in[J. Appl. Phys. 121, 233106 (2017)].
Keywords:  Rydberg electromagnetically induced transparency-Autler-Townes (EIT-AT)      cascade four-level atom      radio-frequency (RF) electric field  
Received:  11 January 2019      Revised:  09 March 2019      Published:  05 May 2019
PACS:  32.80.Ee (Rydberg states)  
  42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)  
  71.70.-d (Level splitting and interactions)  
  84.40.-x (Radiowave and microwave (including millimeter wave) technology)  
Fund: Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0304203), the National Natural Science Foundation of China (Grant Nos. 61475090, 61675123, 61775124, and 11804202), the State Key Program of National Natural Science of China (Grant Nos. 11434007 and 61835007), and the Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China (Grant No. IRT13076).
Corresponding Authors:  Jianming Zhao     E-mail:  zhaojm@sxu.edu.cn

Cite this article: 

Liping Hao(郝丽萍), Yongmei Xue(薛咏梅), Jiabei Fan(樊佳蓓), Yuechun Jiao(焦月春), Jianming Zhao(赵建明), Suotang Jia(贾锁堂) Rydberg electromagnetically induced transparency and Autler-Townes splitting in a weak radio-frequency electric field 2019 Chin. Phys. B 28 053202

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