1. Magneto-optical imaging using magnetophotonic crystals.
- Author
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Hashimoto, R., Takagi, H., Yonezawa, T., Sakaguchi, K., and Inoue, M.
- Subjects
MAGNETOOPTICS ,CARBON steel ,MAGNETIC fields ,FERROMAGNETIC materials ,MAGNETIC domain ,MAGNETIZATION - Abstract
The magneto-optical (MO) imaging is one of the methods for visualizing the magnetization distribution corresponding to the leakage magnetic fields. In general, the MO imaging requires high-spatial resolution and high-contrast imaging. The spatial resolution of the MO imaging depends on the magnetic domain size. In this study, we used the polycrystalline garnet films with a domain size of about 50 nm for the high-resolution imaging. We also demonstrated MO imaging using the magnetophotonic crystal (MPC) with polycrystalline garnet films in order to improve the MO image contrast. The MO images of a carbon steel surface can be observed by means of the MPC. As a result, the high-spatial resolution and high-contrast MO image was obtained by MPC. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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