A review of dielectric optical metasurfaces for spatial differentiation and edge detection

作     者：Lei WAN Danping PAN Tianhua FENG Weiping LIU Alexander A.POTAPOV Lei WAN;Danping PAN;Tianhua FENG;Weiping LIU;Alexander A.POTAPOV

作者机构：Department of Electronic EngineeringCollege of Information Science and TechnologyJinan UniversityGuangzhou 510632China Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China JNU-IREE RAS Joint Laboratory of Information Techniques and Fractal Signal ProcessingJinan UniversityGuangzhou 510632China Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education InstitutesJinan UniversityGuangzhou 510632China Institute of Radio Engineering and ElectronicsRussian Academy of SciencesMoscow 125009Russia 

出 版 物：《Frontiers of Optoelectronics》 (光电子前沿（英文版）)

年 卷 期：2021年第14卷第2期

页      面：187-200页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：the National Key R&D Program of China(No.2019YFB1803904) in part by the National Natural Science Foundation of China(Grant Nos.61805104,11704156,61935013,61875076,and 61865014) in part by the Open Project of Wuhan National Laboratory for Optoelectronics,China(No.2018WNLOKF015) 

主　　题：dielectric metasurfaces spatial differentiator edge detection optical transfer function 

摘      要：Dielectric metasurfaces-based planar optical spatial differentiator and edge detection have recently been proposed to play an important role in the parallel and fast image processing *** the development of dielectric metasurfaces of different geometries and resonance mechanisms,diverse on-chip spatial differentiators have been proposed by tailoring the dispersion characteristics of subwavelength *** review focuses on the basic principles and characteristic parameters of dielectric metasurfaces as first-and second-order spatial differentiators realized via the Green s function *** spatial bandwidth and polarization dependence are emphasized as key properties by comparing the optical transfer flinctions of metasurfaces for different incident wavevectors and *** present the operational capabilities of a two-dimensional spatial differentiator in image information acquisition,edge detection is described to illustrate the practicability of the *** an application example,experimental demonstrations of edge detection for different biological cells and a flower mold are discussed,in which a spatial differentiator and objective lens or camera are integrated in three optical pathway *** realization of spatial differentiators and edge detection with dielectric metasurfaces provides new opportunities for ultrafast information identification in biological imaging and machine vision.