中国物理B ›› 2024, Vol. 33 ›› Issue (5): 54203-054203.doi: 10.1088/1674-1056/ad2a6f
Extending microwave-frequency electric-field detection through single transmission peak method
ing Liu(刘青)1,2, Jin-Zhan Chen(陈进湛)2, He Wang(王赫)2, Jie Zhang(张杰)2, Wei-Min Ruan(阮伟民)2, Guo-Zhu Wu(伍国柱)2, Shun-Yuan Zheng(郑顺元)2, Jing-Ting Luo(罗景庭)1, and Zhen-Fei Song(宋振飞)2,3,†
- 1 College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China;
2 Shenzhen Institute for Technology Innovation, National Institute of Metrology, Shenzhen 518107, China;
3 Center for Advanced Measurement Science, National Institute of Metrology, Beijing 100029, China
Extending microwave-frequency electric-field detection through single transmission peak method
ing Liu(刘青)1,2, Jin-Zhan Chen(陈进湛)2, He Wang(王赫)2, Jie Zhang(张杰)2, Wei-Min Ruan(阮伟民)2, Guo-Zhu Wu(伍国柱)2, Shun-Yuan Zheng(郑顺元)2, Jing-Ting Luo(罗景庭)1, and Zhen-Fei Song(宋振飞)2,3,†
- 1 College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China;
2 Shenzhen Institute for Technology Innovation, National Institute of Metrology, Shenzhen 518107, China;
3 Center for Advanced Measurement Science, National Institute of Metrology, Beijing 100029, China
摘要： The strength of microwave (MW) electric field can be observed with high precision by using the standard electromagnetically induced transparency and Aulter-Towns (EIT-AT) technique, when its frequency is resonant or nearly-resonant with the Rydberg transition frequency. As the detuning of MW field increases, one of the transmission peaks (single peak) is easier to measure due to its increased amplitude. It can be found that the central symmetry point of the two transmission peaks $f_{1/2 }$ is only related to the detuning of MW field $\varDelta_{\rm MW} $ and central symmetry point $f_{0 }$ of resonant MW field, satisfying the relation $f_{1/2} ={\varDelta_{\rm MW} }/{2}+f_{0} $. Thus, we demonstrate a single transmission peak method that the MW E-field can be determined by interval between the position of single peak and $f_{1/2}$. We use this method to measure continuous frequencies in a band from $-200$ MHz to 200 MHz of the MW field. The experimental results and theoretical analysis are presented to describe the effectiveness of this method. For 50 MHz,$< \varDelta_{\rm MW}< 200$ MHz, this method solves the problem that the AT splitting cannot be measured by using the standard EIT-AT techniques or multiple atomic-level Rydberg atom schemes.
中图分类号: (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
- 42.50.Gy