Depolarization effect of a vapor cell in atom-based radio-frequency electric field measurement

被引：1
作者：
Zhang, Wanfeng [1 ]
Song, Zhenfei [1 ]
Mu, Huihui [2 ]
Bao, Shanxia [3 ]
机构：
[1] Natl Inst Metrol, Beijing 100029, Peoples R China
[2] Southeast Univ, Nanjing 210096, Jiangsu, Peoples R China
[3] Datong Univ, Datong 037009, Peoples R China
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2018年 / 57卷 / 09期
关键词：
ELECTROMAGNETICALLY INDUCED TRANSPARENCY; SELF-CALIBRATED MEASUREMENTS; RYDBERG ATOMS; SUBWAVELENGTH; SPECTROSCOPY; ELECTROMETRY;
D O I：
10.7567/JJAP.57.090310
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The Rydberg atom can be used as an active probe for precision radio-frequency (RF) electric field (E-field) measurement; however, the RF cavity resonance and scattering effect of an atomic vapor cell lead to polarization distortion inside the cell, and the depolarization effect limits the sensitivity and accuracy of E-field measurement. The finite element simulation and characteristic mode analysis of a hollow-cavity model are implemented to find an optimized solution of minimizing such depolarization. Manipulating atoms in the middle layer of a vapor cell along an incident field vector can avoid the depolarization, which is validated by the vector distribution measurement at 15.09 GHz. (C) 2018 The Japan Society of Applied Physics
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页数：5
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