中国物理B ›› 2023, Vol. 32 ›› Issue (10): 103202-103202.doi: 10.1088/1674-1056/acf120
Ting Gong(宫廷)1,2,3, Shuai Shi(师帅)1, Zhonghua Ji(姬中华)2,3,†, Guqing Guo(郭古青)1, Xiaocong Sun(孙小聪)1, Yali Tian(田亚莉)1, Xuanbing Qiu(邱选兵)1, Chuanliang Li(李传亮)1, Yanting Zhao(赵延霆)2,3, and Suotang Jia(贾锁堂)2,3
Ting Gong(宫廷)1,2,3, Shuai Shi(师帅)1, Zhonghua Ji(姬中华)2,3,†, Guqing Guo(郭古青)1, Xiaocong Sun(孙小聪)1, Yali Tian(田亚莉)1, Xuanbing Qiu(邱选兵)1, Chuanliang Li(李传亮)1, Yanting Zhao(赵延霆)2,3, and Suotang Jia(贾锁堂)2,3
摘要: We demonstrate a simple method to measure electric field intensity by using doublet electromagnetically induced transparency (EIT) spectra of cold Rb Rydberg atoms, where the frequency of the coupling laser does not need to be locked. Based on the Stark splitting of the Rb Rydberg state, 10D3/2, under electric fields and the corresponding calculated polarizabilities, the real electric field intensity is calculated using the difference in radio-frequency diffraction between two acousto-optic modulators, which acts as a frequency criterion that allows us to measure the electrical field without locking the coupling laser. The value measured by this simple method shows a good agreement with our previous work [Opt. Express 29 1558 (2021)] where the frequency of the coupling laser needs to be locked with an additional EIT spectrum based on atom vapor and a proportional-integral-differential feedback circuit. Our presented method can also be extended to the measurement of electric field based on hot Rydberg atom vapor, which has application in industry.
中图分类号: (Zeeman and Stark effects)