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Herriott-cavity-assisted All-optical Atomic Vector Magnetometer by Cai, Bo; Hao, Chuanpeng; Qiu, Zheru; Yu, Qianqian; Xiao, Wei; Sheng, Dong is a scholarly article available to read on EtoBox.

What is Herriott-cavity-assisted All-optical Atomic Vector Magnetometer about?

We report an all-optical atomic vector magnetometer using dual Bell-Bloom optical pumping beams in a Rb vapor cell. This vector magnetometer consists of two orthogonal optical pumping beams, with amplitude modulations at $^{85}$Rb and $^{87}$Rb Larmor frequencies respectively. We simultaneously detect atomic signals excited by these two pumping beams using a single probe beam in the third direction, and extract the field orientation information using the phase delays between the modulated atomic signals and the driving beams. By adding a Herriott cavity inside the vapor cell, we improve the magnetometer sensitivity. We study the performance of this vector magnetometer in a magnetic field ranging from 100~mG to 500~mG, and demonstrate a field angle sensitivity better than 10~${\mu}$rad/Hz$^{1/2}$ above 10~Hz.

Author

Cai, Bo; Hao, Chuanpeng; Qiu, Zheru; Yu, Qianqian; Xiao, Wei; Sheng, Dong

Published

2020

Language

EN