Unambiguous Vector Magnetometry with Structured Light in Atomic Vapor

Fuente: arXiv
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Main Authors: Ramakrishna, S., Fritzsche, S.
Format: Preprint
Published: 2026
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author Ramakrishna, S.
Fritzsche, S.
author_facet Ramakrishna, S.
Fritzsche, S.
contents Absorption profiles of vector light upon interaction with atomic vapor carries distinct signatures of external magnetic field vector. However, this signature becomes ambiguous for anti parallel magnetic field vectors of equal magnitude, which makes their absorption profiles visually indistinguishable. To resolve this ambiguity, we present theoretical analysis of the interaction of vector light with optically polarized atoms immersed in reference and test magnetic fields. Furthermore, we demonstrate the complete characterization of the arbitrarily oriented test magnetic field via Fourier analysis of the absorption profile. This analysis reveals a one to one correspondence between the magnetic field properties and the profiles contrast and rotational angle. Our findings open an avenue to design an optical vector atomic magnetometer based on structured light fields.
format Preprint
id arxiv_https___arxiv_org_abs_2601_22998
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Unambiguous Vector Magnetometry with Structured Light in Atomic Vapor
Ramakrishna, S.
Fritzsche, S.
Atomic Physics
Absorption profiles of vector light upon interaction with atomic vapor carries distinct signatures of external magnetic field vector. However, this signature becomes ambiguous for anti parallel magnetic field vectors of equal magnitude, which makes their absorption profiles visually indistinguishable. To resolve this ambiguity, we present theoretical analysis of the interaction of vector light with optically polarized atoms immersed in reference and test magnetic fields. Furthermore, we demonstrate the complete characterization of the arbitrarily oriented test magnetic field via Fourier analysis of the absorption profile. This analysis reveals a one to one correspondence between the magnetic field properties and the profiles contrast and rotational angle. Our findings open an avenue to design an optical vector atomic magnetometer based on structured light fields.
title Unambiguous Vector Magnetometry with Structured Light in Atomic Vapor
topic Atomic Physics
url https://arxiv.org/abs/2601.22998