Recent Progress of Atomic Magnetometers for Geomagnetic Applications
Yuantian Lu, Tian Zhao, Wanhua Zhu, Leisong Liu, Xin Zhuang, Guangyou Fang, Xiaojuan Zhang
Abstract
The atomic magnetometer is currently one of the most-sensitive sensors and plays an important role in applications for detecting weak magnetic fields. This review reports the recent progress of total-field atomic magnetometers that are one important ramification of such magnetometers, which can reach the technical level for engineering applications. The alkali-metal magnetometers, helium magnetometers, and coherent population-trapping magnetometers are included in this review. Besides, the technology trend of atomic magnetometers was analyzed for the purpose of providing a certain reference for developing the technologies in such magnetometers and for exploring their applications.