Single beam Cs-Ne SERF atomic magnetometer with the laser power differential method

• DOI: 10.1364/oe.450571
• Publication Date: 2022-04-25T15:30:09Z
• Authors: Yao Chen; Libo Zhao; Ning Zhang; Mingzhi Yu; Yintao Ma; Xiangguang Han; Man Zhao; Qijing Lin; Ping Yang; Zhuangde Jiang
• Keywords: Buffer gas

We describe a single beam compact spin exchange relaxation free (SERF) magnetometer whose configuration is simple and compatible with the silicon-glass bonding micro-machining method. Due to small size of vapor cell utilized in miniature atomic magnetometer, wall could not be neglected. In this study we show that Ne buffer gas more efficient than other typically species such as nitrogen helium for reduction theoretically experimentally. 3 Amagats (1 Amagat=2.69×1019/cm3) filled first demonstration Cs-Ne SERF magnetometer. order reduce laser amplitude noise large background detection offset, which reported main source absorption developed power differential method factor approximately two improvement suppression has been demonstrated. consumption Cs based studied. did an optimization sensitivity 23fT/Hz1/2@100Hz achieved. This