Rapid Electromagnetic Induction Imaging with an Optically Raster-Scanned Atomic Magnetometer
Quantum Physics
2022-11-01 v1 Atomic Physics
Instrumentation and Detectors
Abstract
We present an apparatus to overcome the limitations of mechanical raster-scanning in electromagnetic induction imaging (EMI) techniques by instead performing a 2D optical raster-scan within the vapour cell of a radio-frequency atomic magnetometer (RF-AM). A large cuboidal 87Rb vapour cell is employed to act as the medium of an RF-AM with the pump and probe beams translated in the cell via acousto-optics. The technique is shown to give robust and repeatable magnetic measurements over the cell volume and successfully resolves conductive targets with EMI. Optical raster-scanning removes the limitation of slow mechanical actuation and a fast imaging procedure is enacted resolving conductive targets at a rate of 40 ms/pixel.
Cite
@article{arxiv.2210.16883,
title = {Rapid Electromagnetic Induction Imaging with an Optically Raster-Scanned Atomic Magnetometer},
author = {B. Maddox and C. Deans and H. Yao and Y. Cohen and F. Renzoni},
journal= {arXiv preprint arXiv:2210.16883},
year = {2022}
}
Comments
5 pages, 5 figures