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Giant enhancement of Kerr rotation in two-dimensional Bismuth iron garnet/Ag photonic crystals |
Liang Hong (梁红)a b, Liu Huan (刘欢)c, Zhang Qiang (张强)a c, Fu Shu-Fang (付淑芳)c, Zhou Sheng (周胜)c, Wang Xuan-Zhang (王选章)c |
a School of Electric Engineering, Harbin University of Science and Technology, Harbin 150080, China; b School of Science, Harbin University, Harbin 150086, China; c Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China |
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Abstract Kerr effects of two-dimensional (2D) Bismuth iron garnet (BIG)/Ag photonic crystals (PCs) combined magnetic and plasmonic functionalities is investigated with the effective medium theory. An analytical expression of Kerr rotation angles is derived, in which the effects of the surface pasmons polaritons (SPP) on magneto–optical (MO) activities are reflected. The largest enhancement of Kerr rotation up to now is demonstrated, which is improved three orders of magnitude compared with that of BIG film. When λ< 750 nm all of the reflection are over 10% for the arbitrary filling ratio f1, in addition, the enhancement of Kerr rotation angles are at least one order of magnitude.
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Received: 15 December 2014
Revised: 28 January 2015
Accepted manuscript online:
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PACS:
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78.20.Ls
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(Magneto-optical effects)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11104050, 10947168, 11204056, and 11304068). |
Corresponding Authors:
Fu Shu-Fang
E-mail: shufangfu1975@163.com
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About author: 78.20.Ls |
Cite this article:
Liang Hong (梁红), Liu Huan (刘欢), Zhang Qiang (张强), Fu Shu-Fang (付淑芳), Zhou Sheng (周胜), Wang Xuan-Zhang (王选章) Giant enhancement of Kerr rotation in two-dimensional Bismuth iron garnet/Ag photonic crystals 2015 Chin. Phys. B 24 067807
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