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Proceedings Paper

Magneto-optic visualization of magnetic field microdistributions: principles and applications for NDT of smart structures and materials
Author(s): O. M. Korpusov; R. M. Grechishkin; T. Breczko; M. Yu. Goosev; N. S. Neustroev
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Paper Abstract

Bi-substituted ferrite garnet (R Bi)3(M FE)5O12 epitaxial films with anomalously high (up to 1.2 deg/μm at RT) specific Faraday rotation provide a unique possibility of magneto-optical imaging of magnetic field microdistributions with a sub-micron resolution close to the diffraction limit. In the present work we give a detailed description of the physical principles and various applications of such films in materials science, microelectronics, magnetic testing and nondestructive evaluation (NDE) of defects in both ferromagnetic and non-ferrous metal components. In the latter case eddy-current excitation is used to reveal flaws, cracks and corrosion. The technique is ideal for not only detailed inspections, but also for rapid scanning over large areas to quickly determine structural condition of the part.

Paper Details

Date Published: 10 October 2003
PDF: 3 pages
Proc. SPIE 5127, Sixth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (10 October 2003); doi: 10.1117/12.517956
Show Author Affiliations
O. M. Korpusov, Tver State Univ. (Russia)
R. M. Grechishkin, Tver State Univ. (Russia)
T. Breczko, Univ. Warminsko-Mazurski (Poland)
M. Yu. Goosev, Tver State Univ. (Russia)
N. S. Neustroev, Tver State Univ. (Russia)


Published in SPIE Proceedings Vol. 5127:
Sixth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering

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