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Title
Japanese: 
English:Enhancement of magneto-optical effect via the evanescent wave and its figure of merit 
Author
Japanese: 西林 一彦, 米田 仁紀, 久我 淳, 岩崎 大和, 宗片 比呂夫.  
English: Kazuhiro Nishibayashi, Hitoki Yoneda, Kiyoshi Kuga, Yamato Iwasaki, Hiro Munekata.  
Language English 
Journal/Book name
Japanese: 
English:Japanese Journal of Applied Physics 
Volume, Number, Page vol. 55    no. 7S3    page 07MF03
Published date June 20, 2016 
Publisher
Japanese:応用物理学会物理系学術誌刊行センター 
English:Japan Society of Applied Physics, IOP Publishing 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL http://iopscience.iop.org/article/10.7567/JJAP.55.07MF03/meta
 
DOI https://doi.org/10.7567/JJAP.55.07MF03
Abstract We investigate the enhancement of the magneto-optical (MO) effect via the evanescent wave in MO structures composed of GdFe thin layers and two dielectrics. The MO Kerr rotation and the figure of merit (FOM) among the Kretschmann, Otto and direct-irradiation configurations are compared. The data obtained by experiment and calculation both show that the standing evanescent wave in the metal layer realized in the former two configurations enhances the MO Kerr rotation and FOM. Furthermore, the Kretschmann configuration appears to be superior to the Otto configuration in terms of the efficiency of MO Kerr enhancement.

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