Refraction Light Control by Constructing Output Interface Topography of Metal Waveguide Arrays
CAO Yong, WANG Pei, MIN Chang-Jun, LU Yong-Hua, YUAN Guang-Hui, MING Hai
Department of Physics, University of Science and Technology of China, Hefei 230026Anhui Key Laboratory Optoelectronic Science and Technology, Hefei 230026
Refraction Light Control by Constructing Output Interface Topography of Metal Waveguide Arrays
CAO Yong;WANG Pei;MIN Chang-Jun;LU Yong-Hua;YUAN Guang-Hui;MING Hai
Department of Physics, University of Science and Technology of China, Hefei 230026Anhui Key Laboratory Optoelectronic Science and Technology, Hefei 230026
摘要We investigate a nanoscale metal waveguide array (MWGA) structure and demonstrate that negative refraction effect exists from the visible to infrared frequency. Our numerical analysis shows that this effect is related to output interface of MWGAs. Refraction light would have different directions on the gradient shaped output surface as a result of phase retardation control by waveguide thickness. Finite-difference time-domain analysis shows that more sharp superdiffraction limit imaging can be obtained by constructing convex-like output interface topography.
Abstract：We investigate a nanoscale metal waveguide array (MWGA) structure and demonstrate that negative refraction effect exists from the visible to infrared frequency. Our numerical analysis shows that this effect is related to output interface of MWGAs. Refraction light would have different directions on the gradient shaped output surface as a result of phase retardation control by waveguide thickness. Finite-difference time-domain analysis shows that more sharp superdiffraction limit imaging can be obtained by constructing convex-like output interface topography.
(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
引用本文:
CAO Yong;WANG Pei;MIN Chang-Jun;LU Yong-Hua;YUAN Guang-Hui;MING Hai. Refraction Light Control by Constructing Output Interface Topography of Metal Waveguide Arrays[J]. 中国物理快报, 2008, 25(6): 2104-2106.
CAO Yong, WANG Pei, MIN Chang-Jun, LU Yong-Hua, YUAN Guang-Hui, MING Hai. Refraction Light Control by Constructing Output Interface Topography of Metal Waveguide Arrays. Chin. Phys. Lett., 2008, 25(6): 2104-2106.
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2008, Vol. 25 
