Highly sensitive detection of Rydberg atoms with fluorescence loss spectrum in cold atoms

doi:10.1088/1674-1056/ab593b

中国物理B ›› 2020, Vol. 29 ›› Issue (1): 13201-013201.doi: 10.1088/1674-1056/ab593b

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇下一篇

Highly sensitive detection of Rydberg atoms with fluorescence loss spectrum in cold atoms

Xuerong Shi(师雪荣), Hao Zhang(张好), Mingyong Jing(景明勇), Linjie Zhang(张临杰), Liantuan Xiao(肖连团), Suotang Jia(贾锁堂)

1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China;
2 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

收稿日期:2019-10-10 修回日期:2019-11-12 出版日期:2020-01-05 发布日期:2020-01-05
通讯作者: Hao Zhang E-mail:haozhang@sxu.edu.cn
基金资助:
Project supported by the National Key Research and Development Program of China (Grant Nos. 2017YFA0304203 and 2016YFF0200104), the National Natural Science Foundation of China (Grant Nos. 61505099, 61827824, 91536110, and 61975104), and the Fund for Shanxi ‘1331 Project’ Key Subjects Construction, Bairen Project of Shanxi Province, China.

Highly sensitive detection of Rydberg atoms with fluorescence loss spectrum in cold atoms

Xuerong Shi(师雪荣)^1,2, Hao Zhang(张好)^1,2, Mingyong Jing(景明勇)^1,2, Linjie Zhang(张临杰)^1,2, Liantuan Xiao(肖连团)^1,2, Suotang Jia(贾锁堂)^1,2

1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China;
2 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

Received:2019-10-10 Revised:2019-11-12 Online:2020-01-05 Published:2020-01-05
Contact: Hao Zhang E-mail:haozhang@sxu.edu.cn
Supported by:
Project supported by the National Key Research and Development Program of China (Grant Nos. 2017YFA0304203 and 2016YFF0200104), the National Natural Science Foundation of China (Grant Nos. 61505099, 61827824, 91536110, and 61975104), and the Fund for Shanxi ‘1331 Project’ Key Subjects Construction, Bairen Project of Shanxi Province, China.

摘要/Abstract

摘要： Fluorescence loss spectrum for detecting cold Rydberg atoms with high sensitivity has been obtained based on lock-in detection of fluorescence of 6P_3/2 state when cooling lasers of the magneto-optical trap are modulated. The experiment results show that the signal to noise ratio has been improved by 32.64 dB when the modulation depth (converted to laser frequency) and frequency are optimized to 4 MHz and 6 kHz, respectively. This technique enables us to perform a highly sensitive non-destructive detection of Rydberg atoms.

关键词: fluorescence loss spectrum, Rydberg atoms, signal to noise ratio

Abstract: Fluorescence loss spectrum for detecting cold Rydberg atoms with high sensitivity has been obtained based on lock-in detection of fluorescence of 6P_3/2 state when cooling lasers of the magneto-optical trap are modulated. The experiment results show that the signal to noise ratio has been improved by 32.64 dB when the modulation depth (converted to laser frequency) and frequency are optimized to 4 MHz and 6 kHz, respectively. This technique enables us to perform a highly sensitive non-destructive detection of Rydberg atoms.

Key words: fluorescence loss spectrum, Rydberg atoms, signal to noise ratio

中图分类号: (Magnetic bound states, magnetic trapping of Rydberg states)

32.10.Ee

32.30.Dx (Magnetic resonance spectra) 32.50.+d (Fluorescence, phosphorescence (including quenching))

师雪荣, 张好, 景明勇, 张临杰, 肖连团, 贾锁堂. Highly sensitive detection of Rydberg atoms with fluorescence loss spectrum in cold atoms[J]. 中国物理B, 2020, 29(1): 13201-013201.

Xuerong Shi(师雪荣), Hao Zhang(张好), Mingyong Jing(景明勇), Linjie Zhang(张临杰), Liantuan Xiao(肖连团), Suotang Jia(贾锁堂). Highly sensitive detection of Rydberg atoms with fluorescence loss spectrum in cold atoms[J]. Chin. Phys. B, 2020, 29(1): 13201-013201.

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Highly sensitive detection of Rydberg atoms with fluorescence loss spectrum in cold atoms

Highly sensitive detection of Rydberg atoms with fluorescence loss spectrum in cold atoms

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