Optical spatial differentiator based on subwavelength high-contrast gratings
2019 Conference on Lasers and Electro-Optics (CLEO)（2019）
摘要
Based on subwavelength high-contrast gratings (HCGs), a transmissive optical spatial differentiator without Fourier lens is proposed experimentally, which achieves edge detections of images and provides applications in optical computing systems and parallel data processing. (tel: +86 138 1627 3160, e-mail: xxdeng@sjtu.edu.cn). (C) 2019 The Author(s)
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关键词
parallel data processing,image edge detections,Fourier lens,optical computing systems,transmissive optical spatial differentiator,subwavelength high-contrast gratings
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