Entire Transmission in Negative Directions through a Single Layer of Nanorods
WU Kang-Xin, YU Li**, DUAN Gao-Yan, WANG Lu-Lu, XIAO Jing-Hua
State Key Lab of Information Photonics and Optical Communications, Department of Science, Beijing University of Posts and Telecommunications, Beijing 100876
Abstract：We numerically investigate the regulation of beam direction by a single layer of high electrical permittivity nanorods with two kinds of cross-arranged radii. It is found that an oblique incident optical beam transmits more than 95% with a wide range wavelength of 80 nm near 1550 nm in a negative direction. In particular the efficiency can be up to 100% around the wavelength of 1550 nm at a wide-range angle. The results are very promising for designing subwavelength optical elements to realize beam steering in optical integrated circuits.
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2014, Vol. 31 
