Using amplitude modulation of the microwave field to improve the sensitivity of Rydberg-atom based microwave electrometry

The microwave (MW) field can be measured by the Autler–Townes (AT) splitting of the electromagnetically induced transparency (EIT) spectrum in the Rydberg atomic system; however, the EIT-AT splitting method fails in weak MW fields. We used the amplitude modulation of the MW field to resolve the EIT-...

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Bibliographic Details
Published inAIP advances Vol. 11; no. 8; pp. 085127 - 085127-5
Main Authors Liu, Xiubin, Jia, Fengdong, Zhang, Huaiyu, Mei, Jiong, Yu, Yonghong, Liang, Weichen, Zhang, Jian, Xie, Feng, Zhong, Zhiping
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.08.2021
AIP Publishing LLC
Subjects
Amplitude modulation
Splitting
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Summary:The microwave (MW) field can be measured by the Autler–Townes (AT) splitting of the electromagnetically induced transparency (EIT) spectrum in the Rydberg atomic system; however, the EIT-AT splitting method fails in weak MW fields. We used the amplitude modulation of the MW field to resolve the EIT-AT splitting in weak MW fields. The EIT-AT splitting interval can be directly obtained, and the minimum detectable MW strength is improved by six times compared with the traditional EIT-AT splitting method. The proposed method is more intuitive and convenient for measuring the strength of weak MW fields in practical applications.
ISSN:2158-3226
2158-3226
DOI:10.1063/5.0054027