Design of a laser frequency stabilization for Cs atomic magnetometer

Abstract

An atomic magnetometer can measure weak magnetic fields with a high sensitivity ~ fT/√Hz, which can be reached with a laser stabilization technique. This sensitivity can be used in axion-like field search. When the gradient of an axion domain wall interacts with the spin of a magnetometer, a very weak extraordinary magnetic field is generated and can be measured. We will develop an atomic magnetometer with Cesium vapor for detecting such magnetic fields from the axion like domain walls. The design of the laser frequency (852 nm) stabilization in the magnetometer using the dichroic atomic vapor laser lock (DAVLL) technique is presented.