Quantitative magnetooptical analysis using indicator films for the detection of magnetic field distributions, temperature, and electrical currents
Abstract The accurate characterization of local magnetic fields and temperature is vital for the design of electronic systems. To meet this imperative, we present a novel non-contact approach for simultaneous quantitative magnetic field imaging and temperature sensing using magnetooptics and a bismu...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-10-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-024-74684-y |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850203815004864512 |
|---|---|
| author | Michael P. Path Jeffrey McCord |
| author_facet | Michael P. Path Jeffrey McCord |
| author_sort | Michael P. Path |
| collection | DOAJ |
| description | Abstract The accurate characterization of local magnetic fields and temperature is vital for the design of electronic systems. To meet this imperative, we present a novel non-contact approach for simultaneous quantitative magnetic field imaging and temperature sensing using magnetooptics and a bismuth-doped yttrium iron garnet film with out-of-plane anisotropy. For the direct signal quantification, a Stokes polarization camera is employed in a conventional magnetooptical microscope. The magnetization in the garnet is modulated with an external magnetic field to continuously image the Faraday rotation at four distinct points along the saturating magnetization loop. The method enables sensing of the magnetooptical signal in saturation, the magnetooptical susceptibility, the temperature, and self-calibrated driftfree imaging of the out-of-plane magnetic field component. A spatial resolution of magnetic field in the micrometer range with millisecond exposure time is demonstrated. The method is verified by analyzing the stray magnetic field distribution of electrical current in a wire simultaneously to the Joule heating induced by the applied current. |
| format | Article |
| id | doaj-art-5635940378d34721bb286e1b8a45efb6 |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-5635940378d34721bb286e1b8a45efb62025-08-20T02:11:25ZengNature PortfolioScientific Reports2045-23222024-10-0114111010.1038/s41598-024-74684-yQuantitative magnetooptical analysis using indicator films for the detection of magnetic field distributions, temperature, and electrical currentsMichael P. Path0Jeffrey McCord1Nanoscale Magnetic Materials - Magnetic Domains, Department of Materials Science, Faculty of Engineering, Kiel UniversityNanoscale Magnetic Materials - Magnetic Domains, Department of Materials Science, Faculty of Engineering, Kiel UniversityAbstract The accurate characterization of local magnetic fields and temperature is vital for the design of electronic systems. To meet this imperative, we present a novel non-contact approach for simultaneous quantitative magnetic field imaging and temperature sensing using magnetooptics and a bismuth-doped yttrium iron garnet film with out-of-plane anisotropy. For the direct signal quantification, a Stokes polarization camera is employed in a conventional magnetooptical microscope. The magnetization in the garnet is modulated with an external magnetic field to continuously image the Faraday rotation at four distinct points along the saturating magnetization loop. The method enables sensing of the magnetooptical signal in saturation, the magnetooptical susceptibility, the temperature, and self-calibrated driftfree imaging of the out-of-plane magnetic field component. A spatial resolution of magnetic field in the micrometer range with millisecond exposure time is demonstrated. The method is verified by analyzing the stray magnetic field distribution of electrical current in a wire simultaneously to the Joule heating induced by the applied current.https://doi.org/10.1038/s41598-024-74684-yMagnetoopticsTemperature sensingMagnetic field sensingMOIFMagnetooptical microscopy |
| spellingShingle | Michael P. Path Jeffrey McCord Quantitative magnetooptical analysis using indicator films for the detection of magnetic field distributions, temperature, and electrical currents Scientific Reports Magnetooptics Temperature sensing Magnetic field sensing MOIF Magnetooptical microscopy |
| title | Quantitative magnetooptical analysis using indicator films for the detection of magnetic field distributions, temperature, and electrical currents |
| title_full | Quantitative magnetooptical analysis using indicator films for the detection of magnetic field distributions, temperature, and electrical currents |
| title_fullStr | Quantitative magnetooptical analysis using indicator films for the detection of magnetic field distributions, temperature, and electrical currents |
| title_full_unstemmed | Quantitative magnetooptical analysis using indicator films for the detection of magnetic field distributions, temperature, and electrical currents |
| title_short | Quantitative magnetooptical analysis using indicator films for the detection of magnetic field distributions, temperature, and electrical currents |
| title_sort | quantitative magnetooptical analysis using indicator films for the detection of magnetic field distributions temperature and electrical currents |
| topic | Magnetooptics Temperature sensing Magnetic field sensing MOIF Magnetooptical microscopy |
| url | https://doi.org/10.1038/s41598-024-74684-y |
| work_keys_str_mv | AT michaelppath quantitativemagnetoopticalanalysisusingindicatorfilmsforthedetectionofmagneticfielddistributionstemperatureandelectricalcurrents AT jeffreymccord quantitativemagnetoopticalanalysisusingindicatorfilmsforthedetectionofmagneticfielddistributionstemperatureandelectricalcurrents |