Visualization of magnetic fields with cylindrical vector beams in a warm atomic vapor

Qiu, S., Wang, J., Castellucci, F., Cao, M., Zhang, S., Clark, T. W., Franke-Arnold, S. , Gao, H. and Li, F. (2021) Visualization of magnetic fields with cylindrical vector beams in a warm atomic vapor. Photonics Research, 9(12), pp. 2325-2331. (doi: 10.1364/PRJ.418522)

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Abstract

We propose and demonstrate an experimental implementation for the observation of magnetic fields from spatial features of absorption profiles in a warm atomic vapor. A radially polarized vector beam that traverses atomic vapor will generate an absorption pattern with a petal-like structure by the mediation of a transverse magnetic field (TMF). The spatial absorption pattern rotates when the azimuthal angle of the TMF is changed, while its contrast decreases when the longitudinal component of the magnetic field increases. By analyzing the intensity distribution of the transmitted pattern, we can determine the magnetic field strength. Our work provides a framework for investigating 3D magnetic field distributions based on atoms.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Franke-Arnold, Professor Sonja and Castellucci, Dr Francesco
Authors: Qiu, S., Wang, J., Castellucci, F., Cao, M., Zhang, S., Clark, T. W., Franke-Arnold, S., Gao, H., and Li, F.
College/School:College of Science and Engineering > School of Physics and Astronomy
Research Group:Optics
Journal Name:Photonics Research
Publisher:Optical Society of America
ISSN:2327-9125
ISSN (Online):2327-9125
Published Online:08 November 2021
Copyright Holders:Copyright © 2021 Chinese Laser Press
First Published:First published in Photonics Research 9(12): 2325-2331
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
300412Collective effects and optomechanics in ultra-cold matterSonja Franke-ArnoldEuropean Commission (EC)721465P&S - Physics & Astronomy