文献类型：期刊文献

英文题名：Enhanced microwave electrometry with intracavity anomalous dispersion in Rydberg atoms

作者：Peng, Y. D.[1,2,4,5];Wang, J. L.[1,2];Li, C.[1,2];Lu, X.[1,2];Qi, Y. H.[6];Yang, A. H.[1,2];Wang, J. Y.[3]

机构：[1]Shandong Univ Sci & Technol, Coll Elect & Informat Engn, Qingdao Key Lab Terahertz Technol, Qingdao 266590, Peoples R China;[2]Shandong Univ Sci & Technol, Coll Elect Engn & Automat, Qingdao 266590, Peoples R China;[3]China Univ Petr East China, Sch Geosci, Qingdao 266580, Peoples R China;[4]Ulm Univ, Inst Quantum Opt, Albert Einstein Allee 11, D-89081 Ulm, Germany;[5]Ulm Univ, IQST, Albert Einstein Allee 11, D-89081 Ulm, Germany;[6]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China

年份：2020

卷号：52

期号：2

外文期刊名：OPTICAL AND QUANTUM ELECTRONICS

收录：;EI(收录号：20200708172479);WOS:【SCI-EXPANDED(收录号:WOS:000519119000001)】；

基金：The authors are very thankful for helpful discussion with Prof. Fedor Jelezko. This work is supported by the National Natural Science Foundation of China (Nos. 61675118, 91848206, 61981240369), Innovation Fund of Postgraduate of SDUST (No. SDKDYC190213), Key Laboratory for Robot and Intelligent Technology of Shandong Province (KLRIT2018002) and Taishan Scholarship Con-struction Engineering, Shandong Province Ph.D. Overseas Training Program (2018), Qunxing Program of SDUST (QX2018M37), Key Research and Development Program of Shandong Province (2019GGX104039, 2019GGX104053).

语种：英文

外文关键词：Measurement of microwave electric field; Rydberg atoms; Anomalous dispersion; Optical cavity

摘要：Intracavity anomalous dispersion is investigated and proposed to enhance detection sensitivity of weak microwave electric field with Rydberg atoms. When the Rydberg atoms are prepared with Raman gain and the cavity field serves as the probe field driving the metastable-state transition, two cavity modes are amplified due to the gain effect and two gain peaks appear in the cavity transmission, meanwhile, a large anomalous dispersion arises in the gain window. The frequency splitting of two gain peaks shows linear relationship with the MW field strength, which can be used to probe the MW electric-field strength. It is interesting to find that the anomalous dispersion broadens the frequency splitting of two gain peaks dramatically, so the probe sensitivity of MW field could be enhanced by 10 times from simulation, compared with the cavity-less scheme.