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Magneto-optical visualization of metal-loss defects in a ferromagnetic plate: experimental verification of theoretical modeling

  • Rare-earth iron garnet films with in-plane magnetic anisotropy grown on [111]-oriented substrates are promising for the visualization of magnetic leakage fields in nondestructive evaluation. Such magneto-optical films have to be specifically engineered, and we give an example of this technology. To assess the validity and accuracy of finite-element calculations of a magnetization assembly combined with the physical modeling of the image formation, comparisons between calculated and experimentally obtained magneto-optical images of metal-loss defects have been made. A convincing quantitative agreement is demonstrated. It is shown that both physical and computer modeling techniques allow for a predictive engineering design of the prospective applications and provide greater insight into the method.

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Metadaten
Author:Mikhail Shamonin (Chamonine)ORCiDGND, M. Klank, Oliver Hagedorn, Horst Dötsch
DOI:https://doi.org/10.1364/ao.40.003182
Parent Title (English):Applied optics
Publisher:Optica Publishing Group
Document Type:Article
Language:English
Year of first Publication:2001
Release Date:2023/03/30
Volume:40
Issue:19
First Page:3182
Last Page:3189
Institutes:Fakultät Elektro- und Informationstechnik
Fakultät Elektro- und Informationstechnik / Labor Intelligente Materialien und Strukturen
Publication:Externe Publikationen
research focus:Information und Kommunikation
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG