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Rapid Electromagnetic Induction Imaging with an Optically Raster-Scanned Atomic Magnetometer

arXiv
Authors: B. Maddox, C. Deans, H. Yao, Y. Cohen, F. Renzoni

Year

2022

Paper ID

57856

Status

Preprint

Abstract Read

~2 min

Abstract Words

109

Citations

N/A

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.

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  • We present an apparatus to overcome the limitations of mechanical raster-scanning in electromagnetic induction imaging (EMI) techniques by instead performing a 2D optical...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2210.16883 [2] arXiv https://arxiv.org/abs/2210.16883 [3] Publisher https://arxiv.org/abs/2210.16883

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