Metasurface enabled broadband, high numerical aperture Laplace differentiator under multiple polarization illumination
Abstract Optical metasurfaces to perform optical analog spatial differentiation operations and image edge detection processing is a currently hot topic. However, some metasurface differentiators are limited by polarization dependence, narrow operating bandwidth, low numerical aperture (NA), requirin...
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SpringerOpen
2025-04-01
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| Series: | PhotoniX |
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| Online Access: | https://doi.org/10.1186/s43074-025-00168-5 |
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| author | Chen Zhou Naseer Muhammad Ruizhe Zhao Yanjie Chen Guangzhou Geng Junjie Li Xiaowei Li Xin Li Yongtian Wang Lingling Huang |
| author_facet | Chen Zhou Naseer Muhammad Ruizhe Zhao Yanjie Chen Guangzhou Geng Junjie Li Xiaowei Li Xin Li Yongtian Wang Lingling Huang |
| author_sort | Chen Zhou |
| collection | DOAJ |
| description | Abstract Optical metasurfaces to perform optical analog spatial differentiation operations and image edge detection processing is a currently hot topic. However, some metasurface differentiators are limited by polarization dependence, narrow operating bandwidth, low numerical aperture (NA), requiring for additional polarization elements or digital processing, and under coherent light illumination conditions. Here, we use the optical angular dispersion effect based on resonant dielectric metasurface, to realize the Laplacian differential operation in the real space directly, which can address these critical metrics for p- and s-polarized light. Moreover, the broadband operating range of the metasurface differentiator can be obtained by exciting and detuning the electric toroidal dipole (ETD) and magnetic toroidal dipole (MTD) resonances. We experimentally demonstrate that azimuthal-insensitive Laplace differential operations and dual-polarization second-order two-dimensional edge detection with NA up to 0.64 and spectral bandwidths of nearly 100 nm from 750 to 850 nm. In addition, broadband incoherent and unpolarized edge detection experiments are also carried out with satisfactory performance. Our work will pave the way for free-space realization of high-efficiency, broadband parallel optical-computation and image-processing in machine-vision, biomedical, and optical microscopy. |
| format | Article |
| id | doaj-art-4bc22426b5dc4771834c0b0bbc7013c2 |
| institution | OA Journals |
| issn | 2662-1991 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | PhotoniX |
| spelling | doaj-art-4bc22426b5dc4771834c0b0bbc7013c22025-08-20T01:54:30ZengSpringerOpenPhotoniX2662-19912025-04-016111910.1186/s43074-025-00168-5Metasurface enabled broadband, high numerical aperture Laplace differentiator under multiple polarization illuminationChen Zhou0Naseer Muhammad1Ruizhe Zhao2Yanjie Chen3Guangzhou Geng4Junjie Li5Xiaowei Li6Xin Li7Yongtian Wang8Lingling Huang9Beijing Engineering Research Center of Mixed Reality and Advanced Display, MIIT Key Laboratory of Photonics Information Technology, School of Optics and Photonics, Beijing Institute of TechnologyBeijing Engineering Research Center of Mixed Reality and Advanced Display, MIIT Key Laboratory of Photonics Information Technology, School of Optics and Photonics, Beijing Institute of TechnologyBeijing Engineering Research Center of Mixed Reality and Advanced Display, MIIT Key Laboratory of Photonics Information Technology, School of Optics and Photonics, Beijing Institute of TechnologyBeijing Engineering Research Center of Mixed Reality and Advanced Display, MIIT Key Laboratory of Photonics Information Technology, School of Optics and Photonics, Beijing Institute of TechnologyBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesLaser Micro/Nano-Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of TechnologyBeijing Engineering Research Center of Mixed Reality and Advanced Display, MIIT Key Laboratory of Photonics Information Technology, School of Optics and Photonics, Beijing Institute of TechnologyBeijing Engineering Research Center of Mixed Reality and Advanced Display, MIIT Key Laboratory of Photonics Information Technology, School of Optics and Photonics, Beijing Institute of TechnologyBeijing Engineering Research Center of Mixed Reality and Advanced Display, MIIT Key Laboratory of Photonics Information Technology, School of Optics and Photonics, Beijing Institute of TechnologyAbstract Optical metasurfaces to perform optical analog spatial differentiation operations and image edge detection processing is a currently hot topic. However, some metasurface differentiators are limited by polarization dependence, narrow operating bandwidth, low numerical aperture (NA), requiring for additional polarization elements or digital processing, and under coherent light illumination conditions. Here, we use the optical angular dispersion effect based on resonant dielectric metasurface, to realize the Laplacian differential operation in the real space directly, which can address these critical metrics for p- and s-polarized light. Moreover, the broadband operating range of the metasurface differentiator can be obtained by exciting and detuning the electric toroidal dipole (ETD) and magnetic toroidal dipole (MTD) resonances. We experimentally demonstrate that azimuthal-insensitive Laplace differential operations and dual-polarization second-order two-dimensional edge detection with NA up to 0.64 and spectral bandwidths of nearly 100 nm from 750 to 850 nm. In addition, broadband incoherent and unpolarized edge detection experiments are also carried out with satisfactory performance. Our work will pave the way for free-space realization of high-efficiency, broadband parallel optical-computation and image-processing in machine-vision, biomedical, and optical microscopy.https://doi.org/10.1186/s43074-025-00168-5MetasurfaceLaplace differentiatorEdge detectionToroidal dipole resonance |
| spellingShingle | Chen Zhou Naseer Muhammad Ruizhe Zhao Yanjie Chen Guangzhou Geng Junjie Li Xiaowei Li Xin Li Yongtian Wang Lingling Huang Metasurface enabled broadband, high numerical aperture Laplace differentiator under multiple polarization illumination PhotoniX Metasurface Laplace differentiator Edge detection Toroidal dipole resonance |
| title | Metasurface enabled broadband, high numerical aperture Laplace differentiator under multiple polarization illumination |
| title_full | Metasurface enabled broadband, high numerical aperture Laplace differentiator under multiple polarization illumination |
| title_fullStr | Metasurface enabled broadband, high numerical aperture Laplace differentiator under multiple polarization illumination |
| title_full_unstemmed | Metasurface enabled broadband, high numerical aperture Laplace differentiator under multiple polarization illumination |
| title_short | Metasurface enabled broadband, high numerical aperture Laplace differentiator under multiple polarization illumination |
| title_sort | metasurface enabled broadband high numerical aperture laplace differentiator under multiple polarization illumination |
| topic | Metasurface Laplace differentiator Edge detection Toroidal dipole resonance |
| url | https://doi.org/10.1186/s43074-025-00168-5 |
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