Compared with the metal antenna metasurface, the dielectric metasurface has better optical characteristics and smaller ohmic loss in the optical band, which makes it superior. An elliptical cylindrical nanostructured antenna is designed using GaP with excellent transmission characteristics in the visible band. This structure has a transmission efficiency of up to 0.96 in the visible light band. Based on the Pancharatnam–Berry (PB) phase control principle, the metasurface structure composed of the antennas is studied, and its abnormal refraction metasurface and focusing meta-lens are analyzed. It is a highly efficient sub-wavelength structure, and promises great potential for the applications of circular polarization optics, nanolithography, dense storage and biophotonics.

中文翻译：

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可见光下基于GaP的高效椭圆圆柱超表面

与金属天线的表面相比，介电的表面具有更好的光学特性，并且在光带中具有较小的欧姆损耗，这使其具有优越性。使用GaP设计的椭圆圆柱形纳米结构天线在可见波段具有出色的传输特性。这种结构在可见光波段的传输效率高达0.96。根据潘查拉特南–贝里（PB）相位控制原理，研究了由天线组成的超表面结构，并分析了其异常折射超表面和聚焦超透镜。它是一种高效的亚波长结构，在圆偏振光学，纳米光刻，致密存储和生物光子学的应用中具有广阔的前景。