中国物理B ›› 2016, Vol. 25 ›› Issue (1): 10302-010302.doi: 10.1088/1674-1056/25/1/010302

• SPECIAL TOPIC—Non-equilibrium phenomena in soft matters • 上一篇    下一篇

Spin dynamics of the potassium magnetometer in spin-exchange relaxation free regime

Ji-Qing Fu(伏吉庆), Peng-Cheng Du(杜鹏程), Qing Zhou(周庆), Ru-Quan Wang(王如泉)   

  1. 1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2. School of Physical Science and Technology, Yunnan University, Kunming 650091, China
  • 收稿日期:2015-10-19 修回日期:2015-11-05 出版日期:2016-01-05 发布日期:2016-01-05
  • 通讯作者: Ru-Quan Wang E-mail:ruquanwang@aphy.iphy.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 61227902).

Spin dynamics of the potassium magnetometer in spin-exchange relaxation free regime

Ji-Qing Fu(伏吉庆)1, Peng-Cheng Du(杜鹏程)2, Qing Zhou(周庆)2, Ru-Quan Wang(王如泉)1   

  1. 1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2. School of Physical Science and Technology, Yunnan University, Kunming 650091, China
  • Received:2015-10-19 Revised:2015-11-05 Online:2016-01-05 Published:2016-01-05
  • Contact: Ru-Quan Wang E-mail:ruquanwang@aphy.iphy.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 61227902).

摘要:

The laser-pumped potassium spin-exchange relaxation free (SERF) magnetometer is the most sensitive detector of magnetic field and has many important applications. We present the experimental results of our potassium SERF magnetometer. A pump-probe approach is used to identify the unique spin dynamics of the atomic ensemble in the SERF regime. A single channel sensitivity of 8 f· THz-1/2 is achieved with our SERF magnetometer.

关键词: Larmor process, spin-exchange relaxation free magnetometer, atomic magnetometer

Abstract:

The laser-pumped potassium spin-exchange relaxation free (SERF) magnetometer is the most sensitive detector of magnetic field and has many important applications. We present the experimental results of our potassium SERF magnetometer. A pump-probe approach is used to identify the unique spin dynamics of the atomic ensemble in the SERF regime. A single channel sensitivity of 8 f· THz-1/2 is achieved with our SERF magnetometer.

Key words: Larmor process, spin-exchange relaxation free magnetometer, atomic magnetometer

中图分类号:  (Semiclassical theories and applications)

  • 03.65.Sq
32.30.Dx (Magnetic resonance spectra) 32.50.+d (Fluorescence, phosphorescence (including quenching)) 33.57.+c (Magneto-optical and electro-optical spectra and effects)