An ingenious approach to acquire the absolute magnetization fields produced by polarized atoms was based on detection of spin precession signal of the hyperpolarized helium-3 with ultra-sensitive atomic magnetometer of potassium.
面向国家在量子调控技术领域重大需求,在国内率先开展了基于量子闭环操控的原子自旋磁场测量技术研究,在国内首次研制成功基于SERF的超高灵敏原子自旋磁场测量的实验研究装置,实现了优于1fT/Hz^(1/2)的磁场测量灵敏度;首次实现了SERF原子自旋陀螺效应和核磁共振原子自旋陀螺效应原理验证,引领了中国新型高精度量子传感测量仪表技术的发展;
同时利用该技术进行基础物理基本粒子理论方面的实验验证方案。
Ref: J. Appl. Phys. 119, 143901 (2016); http://dx.doi.org/10.1063/1.4945670
http://scitation.aip.org/content/aip/journal/jap/119/14/10.1063/1.4945670