Design and simulation of concave and planar superposition compound eye

Traditional terahertz lenses face high thickness, low transmittance, difficult processing, and other problems that are not conducive to mass production and integration. Here, we propose a wideband all-dielectric Pancharatnam–Berry geometric phase cell structure to construct a metasurface flat lens. However, when the geometrical phase element structure rotates, the transmission efficiency of the periodic element structure obviously decreases, which will lead to the decrease of the efficiency of the designed flat lens. In order to improve the efficiency, we propose to add a layer of tapered microstructure on the flat substrate to greatly improve the transmission efficiency of the element structure, thus leading to the improvement of the efficiency of the metasurface lens. By comparing the metasurface lens with conical and planar substrates, the metasurfaces with conical structure can greatly improve the transmission efficiency at broadband and wide angle ranges.

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红外双波段共焦复合孔径光学系统设计

Dang Gengming,

Gao Ming,

Fan Chen

et al. 2023

光学学报

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Design and simulation of concave and planar superposition compound eye

Cited by 3 publications

References 8 publications

Super-resolution and super-robust single-pixel superposition compound eye

Super-resolution and super-robust single-pixel superposition compound eye

Enhancement of efficiency on the Pancharatnam–Berry geometric phase metalens in the terahertz region

红外双波段共焦复合孔径光学系统设计

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