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Abstract

Rydberg atoms have large electric dipole moments in the microwave and terahertz frequency band. The detection of electromagnetic field intensity in this frequency band can be achieved by using quantum interference effects. Theoretically, this detection method can have a sensitivity much higher than the traditional detection methods. Therefore, electromagnetic field detection and precision measurement technology based on Rydberg atomic quantum effects has great application prospects in terahertz field strength and power measurement, terahertz communication and imaging. In this paper, we review the basic theory and experimental methods to realize the self-calibration and traceability measurement of electromagnetic field based on Rydberg atomic quantum effects. The principle and technical scheme of high-sensitivity terahertz field strength measurement, terahertz near-field high-speed imaging and terahertz digital communication based on Rydberg atom are introduced in detail. Finally, the processing terahertz detection work based on Rydberg atom by our research team is also mentioned briefly.

Keywords:

Rydberg atom/
precise measurement of electromagnetic field/
terahertz imaging/
terahertz communication

Authors and contacts

Corresponding author:Huang Wei,WeiHuang@m.scnu.edu.cn; Yan Hui,yanhui@scnu.edu.cn; Zhu Shi-Liang,slzhunju@163.com

Funds:Project supported by the National Natural Science Foundation of China (Grant Nos. 91636218, 11804104), the Key Area Research and Development Program of Guangdong Province, China (Grant No. 2019B030330001), and the Key Project of Science and Technology of Guangzhou, China (Grant Nos. 201804020055, 201902020002)

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Cited By

DownLoad: Full-Size Img PowerPoint

铷原子		铯原子
径向电偶极矩/$a_{0} e$	对应跃迁频率/THz	径向电偶极矩/$a_{0} e$	对应跃迁频率/THz
509.687	0.342	513.125	0.339
424.780	0.449	421.685	0.456
376.294	0.542	379.324	0.535
336.314	0.642	339.203	0.634
302.964	0.750	301.320	0.759
266.916	0.909	275.101	0.861
263.079	0.933	265.677	0.919
233.146	1.116	232.273	1.127
229.824	1.145	208.101	1.315
201.655	1.392	201.108	1.404

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Vol. 70, Issue 6 - 2021-03-20

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