A Terahertz Radiation Linear Polarizer Based on Using a Magnetic Fluid in an External Magnetic Field

Abstract

A model of a magnetically controlled linear polarizer of terahertz (THz) waves based on a cell filled with a magnetic fluid and controlled by an external magnetic field was proposed. The magnetic fluid consisted of a synthetic oil with high transparency in the THz range and ferromagnetic alloy microparticles. Selection of the ferromagnetic particles size and concentration, and also parameters of the external magnetic field was conducted. It was shown that when using ferromagnetic particles of 10–35 μm size, a concentration of 10 wt.%, and a magnetic field with induction of 6.7–57.2 mT, the created construction works as a linear polarizer of the THz wave in the ranged from 0.3 to 1.5 THz, with the degree of polarization of the initially non-polarized THz wave transmitted through the cell being at least of 80%.

Publication DOI: https://doi.org/10.3390/photonics10060675
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Engineering for Health
Aston University (General)
Additional Information: Copyright © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Funding Information: The research was supported by the Grant of the Russian Ministry of Science and Education (Agreement No. 075-15-2021-1412 dated 23 December 2021, unique contract identifier RF 2251.62321X0012)
Uncontrolled Keywords: Radiology, Nuclear Medicine and imaging,Instrumentation,Atomic and Molecular Physics, and Optics
Publication ISSN: 2304-6732
Last Modified: 02 Dec 2024 08:55
Date Deposited: 21 Jun 2023 07:16
Full Text Link:
Related URLs: https://www.mdp ... 4-6732/10/6/675 (Publisher URL)
PURE Output Type: Article
Published Date: 2023-06
Published Online Date: 2023-06-11
Accepted Date: 2023-06-09
Authors: Votintsev, Alexey P.
Borisov, Alexey V.
Kochnev, Zakhar S.
Meglinski, Igor (ORCID Profile 0000-0002-7613-8191)
Kistenev, Yury V.

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