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Proceedings Paper

Enhancement of Goos-Hänchen effect in a prism-waveguide coupling system with magneto-optic material
Author(s): Tingting Tang; Longjiang Deng; Jun Qin; Lei Bi
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Paper Abstract

We report a theoretical study of the enhancement of Goos-Hänchen (GH) effect in a prism-waveguide coupling system with magneto-optic materials, including dielectric waveguide (Prism/Air/Ce:YIG/SiO2) and plasmonic waveguide (Prism/Au/Ce:YIG/SiO2) structures. Giant GH shift is observed in both waveguides. By applying opposite magnetic field across the CeYIG layer, a variation of the GH shift, namely MOGH (magneto-optical Goos-Hänchen effect) is observed. Compared to the reflectivity and Goos-Hänchen effects of the structures, the MOGH effect shows higher sensitivity for index variations, therefore is very promising for chemical or biomedical index sensors. The device performance as a function of layer dimension, material refractive index and magneto-optical properties are simulated and discussed in detail. It is observed that coupling layer, MO layer thickness and prism index plays an important role in the plasmonic waveguide to control MOGH effect.

Paper Details

Date Published: 7 March 2014
PDF: 12 pages
Proc. SPIE 8980, Physics and Simulation of Optoelectronic Devices XXII, 898011 (7 March 2014); doi: 10.1117/12.2041050
Show Author Affiliations
Tingting Tang, Univ. of Electronic Science and Technology of China (China)
Chengdu Univ. of Information Technology (China)
Longjiang Deng, Univ. of Electronic Science and Technology of China (China)
Jun Qin, Univ. of Electronic Science and Technology of China (China)
Lei Bi, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 8980:
Physics and Simulation of Optoelectronic Devices XXII
Bernd Witzigmann; Marek Osiński; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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