A non-scanning atomic magnetometer based on coherent population trapping

TL;DR

This paper demonstrates a non-scanning atomic magnetometer using coherent population trapping, combining polarization rotation and tailored transmission, with potential for enhanced sensitivity through magnetic field assisted RF scanning.

Contribution

It introduces a non-scanning CPT-based atomic magnetometer that functions as both a magnetometer and frequency standard, avoiding RF scanning requirements.

Findings

Successful demonstration of a non-scanning CPT atomic magnetometer

Potential for improved sensitivity with magnetic field assisted RF scanning

Device operates simultaneously as a frequency standard and magnetometer

Abstract

The method of operation of an atomic magnetometer based on coherent population trapping (CPT) without any requirement of radio frequency scanning is demonstrated. Using a hybrid approach comprising of polarization rotation and tailored transmission due to CPT states, the simultaneous operation of the device as atomic frequency standard as well as atomic magnetometer is investigated. The magnetometer sensitivity can be further improved by utilizing the inherent option of magnetic field assisted synchronized radio frequency scanning.