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- W2945576467 abstract "Significance Edge detection is a fundamental tool in image processing, computing, and machine vision. Compared with digital processes, optical analog approaches show enormous advantages owing to its intrinsic parallel nature for high-speed operation. Recently, optical metamaterials and metasurfaces have performed edge detection via analog spatial differentiation, which shows superior integration capability compared with the traditional bulky system. Unfortunately, experimental realization of optical-edge detection with metamaterials and metasurfaces remains challenging based on previous theoretical proposals. Here, we demonstrated a mechanism to realize an optical spatial differentiator consisting of a designed metasurface sandwiched by two orthogonally aligned linear polarizers. This approach relies on spin-orbit interaction of light and the metasurface, showing versatile edge-detection capability with exceptional quality." @default.
- W2945576467 created "2019-05-29" @default.
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- W2945576467 date "2019-05-17" @default.
- W2945576467 modified "2023-10-10" @default.
- W2945576467 title "Optical edge detection based on high-efficiency dielectric metasurface" @default.
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- W2945576467 doi "https://doi.org/10.1073/pnas.1820636116" @default.
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