Study of Positive and Negative Refraction of Visible Light at the Cu/Air Interface
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概要
- 論文の詳細を見る
Light transmission at the Cu/air interface was measured in the visible region for a series of wedge-shaped Cu film samples. It is found that light refraction at the Cu/air interface changes from negative in the Drude region, passing through zero at about E_{\text{g}}, to positive in the interband-transition region. Detailed discussion is given to exclude those mechanisms which have been arguably assigned as the cause of negative refraction at a metal/dielectric interface. Based on the spectra of the measured refractive index and modeled in the Drude region, the positive and negative refraction analyzed in this work are qualitatively in agreement with dispersion of the group refractive index, and may aid in understanding light transmission at the metal/dielectric interface as characterized by the law of refraction.
- 2011-08-15
著者
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LI Wei
State Key Lab of High Performance Ceramics & Superfine Microstructure, Shanghai Institute of Ceramic
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SHEN YAN
Department of Biochemistry & Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy
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Li Jing
Department Of Agriculture Faculty Of Agriculture Kochi University
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Chen Liang-Yao
Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
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Zhou Wei-Xi
Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
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Dai Zhong-Hong
Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
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Chen Jian-Bo
Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
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Zheng Yu-Xiang
Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
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Zhao Hai-Bin
Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
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Jiang Xun-Ya
State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
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Lynch David
Department of Physics, Iowa State University, Ames, IA 50011, U.S.A.
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Shen Yan
Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
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Li Jing
Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
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