Channeled Polarimetry for Magnetic Field/Current Detection

Magneto-optical magnetic field/current sensors are based on the Faraday effect, which involves changing the polarized state of light. Polarimetric methods are therefore used for measuring polarization characteristics. Channeled polarimetry allows polarization information to be obtained from the anal...

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Main Authors: Georgi Dyankov, Petar Kolev, Tinko A. Eftimov, Evdokiya O. Hikova, Hristo Kisov
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/25/2/466
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author Georgi Dyankov
Petar Kolev
Tinko A. Eftimov
Evdokiya O. Hikova
Hristo Kisov
author_facet Georgi Dyankov
Petar Kolev
Tinko A. Eftimov
Evdokiya O. Hikova
Hristo Kisov
author_sort Georgi Dyankov
collection DOAJ
description Magneto-optical magnetic field/current sensors are based on the Faraday effect, which involves changing the polarized state of light. Polarimetric methods are therefore used for measuring polarization characteristics. Channeled polarimetry allows polarization information to be obtained from the analysis of the spectral domain. Although this allows the characterization of Faraday materials, the method has not yet been used for detection in magneto-optical sensors. This paper reports experimental results for magnetic field/current detection using the channeled polarimetry method. It is shown that in contrast to other methods, this method allows the detection of the phase shift caused by Faraday rotation alone, making the detection independent of temperature. Although an increase in measurement accuracy is required for practical applications by refining the data processing, the experimental results obtained show that this method offers a new approach to improving the performance of magneto-optical current sensors.
format Article
id doaj-art-851e76ce2e73476c9efd3554990a5026
institution Kabale University
issn 1424-8220
language English
publishDate 2025-01-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj-art-851e76ce2e73476c9efd3554990a50262025-01-24T13:49:02ZengMDPI AGSensors1424-82202025-01-0125246610.3390/s25020466Channeled Polarimetry for Magnetic Field/Current DetectionGeorgi Dyankov0Petar Kolev1Tinko A. Eftimov2Evdokiya O. Hikova3Hristo Kisov4Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 109, Acad. G. Bonchev Str., 1113 Sofia, BulgariaInstitute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 109, Acad. G. Bonchev Str., 1113 Sofia, BulgariaCentral Laboratory for Applied Physics, Bulgarian Academy of Sciences, 61 Sanct Petersburg Blvd, 4000 Plovdiv, BulgariaInstitute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 109, Acad. G. Bonchev Str., 1113 Sofia, BulgariaInstitute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 109, Acad. G. Bonchev Str., 1113 Sofia, BulgariaMagneto-optical magnetic field/current sensors are based on the Faraday effect, which involves changing the polarized state of light. Polarimetric methods are therefore used for measuring polarization characteristics. Channeled polarimetry allows polarization information to be obtained from the analysis of the spectral domain. Although this allows the characterization of Faraday materials, the method has not yet been used for detection in magneto-optical sensors. This paper reports experimental results for magnetic field/current detection using the channeled polarimetry method. It is shown that in contrast to other methods, this method allows the detection of the phase shift caused by Faraday rotation alone, making the detection independent of temperature. Although an increase in measurement accuracy is required for practical applications by refining the data processing, the experimental results obtained show that this method offers a new approach to improving the performance of magneto-optical current sensors.https://www.mdpi.com/1424-8220/25/2/466channeled polarimetrymagnetic field sensorcurrent sensorspectral interrogation
spellingShingle Georgi Dyankov
Petar Kolev
Tinko A. Eftimov
Evdokiya O. Hikova
Hristo Kisov
Channeled Polarimetry for Magnetic Field/Current Detection
Sensors
channeled polarimetry
magnetic field sensor
current sensor
spectral interrogation
title Channeled Polarimetry for Magnetic Field/Current Detection
title_full Channeled Polarimetry for Magnetic Field/Current Detection
title_fullStr Channeled Polarimetry for Magnetic Field/Current Detection
title_full_unstemmed Channeled Polarimetry for Magnetic Field/Current Detection
title_short Channeled Polarimetry for Magnetic Field/Current Detection
title_sort channeled polarimetry for magnetic field current detection
topic channeled polarimetry
magnetic field sensor
current sensor
spectral interrogation
url https://www.mdpi.com/1424-8220/25/2/466
work_keys_str_mv AT georgidyankov channeledpolarimetryformagneticfieldcurrentdetection
AT petarkolev channeledpolarimetryformagneticfieldcurrentdetection
AT tinkoaeftimov channeledpolarimetryformagneticfieldcurrentdetection
AT evdokiyaohikova channeledpolarimetryformagneticfieldcurrentdetection
AT hristokisov channeledpolarimetryformagneticfieldcurrentdetection