Laser & Optoelectronics Progress, Volume. 50, Issue 8, 80009(2013)
Research Progress on Gradient Meta-Surfaces
Recently, gradient meta-surface has become an important and hot sub-branch in electromagnetic metamaterial research. In this paper, we review some recent progresses in this area, such as using gradient meta-surfaces as a bridge to link propagating waves and surface waves and the conversion efficiency issue related to such conversion, high efficiency broadband anomalous reflection by optical gradient meta-surfaces, the development of a mode-expansion theory for studying the scattering properties of inhomogeneous meta-surfaces, flat meta-surfaces to focus electromagnetic waves in reflection geometry and the comparison of reflective and transmissive gradient meta-surfaces. Finally, we present our perspectives on the future direction of this research field.
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Sun Shulin, He Qiong, Xiao Shiyi, Xu Qin, Li Xin, Qu Che, Zhou Lei. Research Progress on Gradient Meta-Surfaces[J]. Laser & Optoelectronics Progress, 2013, 50(8): 80009
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Received: Jun. 17, 2013
Accepted: --
Published Online: Aug. 8, 2013
The Author Email: Shulin Sun (sls@fudan.edu.cn)