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

被引：20

作者：

Liu, Xiubin ^{[1
]}

Jia, Fengdong ^{[1
]}

Zhang, Huaiyu ^{[1
]}

Mei, Jiong ^{[1
]}

Yu, Yonghong ^{[1
,2
]}

Liang, Weichen ^{[1
]}

Zhang, Jian ^{[3
]}

Xie, Feng ^{[3
]}

Zhong, Zhiping ^{[1
,4
]}

机构：

[1] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[3] Tsinghua Univ, Key Lab Adv Reactor Engn & Safety, Collaborat Innovat Ctr Adv Nucl Energy Technol, Minist Educ,Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China

[4] Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100190, Peoples R China

来源：

AIP ADVANCES | 2021年 / 11卷 / 08期

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

ELECTROMAGNETICALLY INDUCED TRANSPARENCY; FREQUENCY STABILIZATION; SUBWAVELENGTH;

D O I：

10.1063/5.0054027

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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.

引用

页数：5

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