Sensitivity extension of atom-based amplitude-modulation microwave electrometry via high Rydberg states

被引：13

作者：

Cai, Minghao ^{[1
,2
,3
,4
]}

You, Shuhang ^{[1
,2
]}

Zhang, Shanshan ^{[1
,2
]}

Xu, Zishan ^{[1
,2
]}

Liu, Hongping ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Innovat Acad Precis Measurement Sci & Technol, State Key Lab Magnet Resonance & Atom & Mol Phys, WIPM, Wuhan 430071, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Hefei Natl Lab, Hefei 230088, Peoples R China

[4] Hefei Natl Lab, Shanghai Branch, Shanghai 201315, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2023年 / 122卷 / 16期

基金：

中国国家自然科学基金;

关键词：

VAPOR CELL;

D O I：

10.1063/5.0146768

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Rydberg atom-based microwave electric field sensor has high sensitivity for weak RF-field detection. Selection of Rydberg states with larger electric dipole moment is beneficial to enhance the sensitivity, and we choose Rydberg states with its principal quantum number up to n similar to 80. We study the probe laser transmission response to a microwave field for these chosen high Rydberg states at room temperature. It agrees well with theoretical simulation based on an optical Bloch equation with considered microwave-atom interaction and Doppler broadening effect. In our experiment, the microwave sensing sensitivity based on 85Rb transition vertical bar 78S > -> vertical bar 78P(3/2)> arrives at 5.102(49) nV cm(-1) Hz(-1/2) at 1 kHz. Published under an exclusive license by AIP Publishing.

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