电介质
光学
米氏散射
边缘检测
材料科学
光电子学
GSM演进的增强数据速率
显微镜
散射
图像处理
物理
极化(电化学)
计算机科学
光散射
图像(数学)
人工智能
化学
物理化学
作者
Andrei Komar,Rifat Ahmmed Aoni,Lei Xu,Mohsen Rahmani,Andrey E. Miroshnichenko,Dragomir N. Neshev
出处
期刊:ACS Photonics
[American Chemical Society]
日期:2021-02-16
卷期号:8 (3): 864-871
被引量:41
标识
DOI:10.1021/acsphotonics.0c01874
摘要
We demonstrate an optical image processing technique in the form of edge detection of an object by exploring the angular selectivity of Mie-resonant dielectric metasurfaces of hexagonal symmetry. We examine the effect of both electric and magnetic Mie-type resonances on the spatial dispersion and reveal that the magnetic resonance provides better edge detection. We also explore the polarization sensitivity of the edge detection process and show that edge detection in our hexagonal metasurface is polarization independent. Our results shed light on the underlying mechanisms of edge detection with resonant dielectric metasurfaces and open new opportunities for ultracompact optical image processing devices having multiple applications in vision and microscopy.
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