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

• URL: http://arxiv.org/abs/2109.14405v2
• Date: Sat, 2 Oct 2021 08:37:29 GMT
• Title: Visualization of magnetic fields with cylindrical vector beams in a warm atomic vapor
• Authors: Shuwei Qiu, Jinwen Wang, Francesco Castellucci, Mingtao Cao, Shougang Zhang, Thomas W. Clark, Sonja Franke-Arnold, Hong Gao and Fuli Li
• Abstract summary: 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 an atomic vapor will generate an absorption pattern with petal-like structure by the mediation of a transverse magnetic field.
• Score: 5.538338444181318
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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 an atomic vapor will generate an absorption pattern with 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 three-dimensional magnetic field distributions based on atoms.

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