Novel Magneto-optical Microscope Using Optical Modulation Technique(Magneto-Optical Effect and Measurement)
スポンサーリンク
概要
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Magneto-optical microscope utilizing polarization modulation technique was developed to obtain magneto-optical (MO) images involving quantities of MO effects, such as Faraday rotation and ellipticity. Faraday rotation images were calculated from three images taken with a linear polarized light and circularly polarized lights with left and right rotation. Square dots pattern of Y_2BiFe_4GaO_<12> film with a dimension of 50μm × 50μm and a thickness of 200 nm were measured as a sample, and the magnetic contrast was clearly observed in images of both Faraday rotation and ellipticity at wavelength. The quantitative value of the Faraday rotation and the ellipticity were measured to be 0.5° and 0.15°, respectively. Resolution of the Faraday image was obtained to be less than 0.05° by taking an integration of images and a smoothing treatment.
- 2004-11-01
著者
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Sato K
Graduate School Of Engineering Tokyo Univ. Of Agriculture And Technology
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Konishi Y.
Neoark Corporation
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Akahane K.
Neoark Corporation
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Ishibashi T.
University of Agriculture and Technology
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Kuang Z.
University of Agriculture and Technology
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Zhao X.
National Institute for Materials Science
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Hasegawa T.
The University of Tokyo
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Sato K.
University of Agriculture and Technology
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Ishibashi T.
Materials Science and Technology, Nagaoka Univ. of Technology
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Ishibashi T
Materials Science And Technology Nagaoka Univ. Of Technology
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