Computing metasurfaces enabled chiral edge image sensing
Summary: Computing metasurfaces have shown the extraordinary ability to precisely perform optical analog operations to the input light wave, and therefore exhibit greater potentials toward sensing applications. Here, we propose a unique application of computing metasurface for chiral edge sensing by...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | iScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004222008033 |
| _version_ | 1818235246052638720 |
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| author | Ruisi Wang Shanshan He Shizhen Chen Weixing Shu Shuangchun Wen Hailu Luo |
| author_facet | Ruisi Wang Shanshan He Shizhen Chen Weixing Shu Shuangchun Wen Hailu Luo |
| author_sort | Ruisi Wang |
| collection | DOAJ |
| description | Summary: Computing metasurfaces have shown the extraordinary ability to precisely perform optical analog operations to the input light wave, and therefore exhibit greater potentials toward sensing applications. Here, we propose a unique application of computing metasurface for chiral edge sensing by incorporating a weak-value amplification technique. The computing metasurface performs the spatial differentiation operations of phase objects and extracts the edge-enhanced images, because the phase gradient generally occurs at the edge. The chirality-induced polarization rotation acts as the preselection state and the spatial differentiation operations in the metasurface provide weak coupling. The amplified pointer shift related to the tiny polarization rotation will eventually lead to an asymmetric edge-enhanced image. Owing to the high sensitivity of the weak-value amplification, we experimentally demonstrate a high-contrast recognition of chirality by edge detection, which may have potential applications in real-time measurement and separation of chiral enantiomers. |
| first_indexed | 2024-12-12T11:50:55Z |
| format | Article |
| id | doaj.art-4c260c6b707246a7b3cc6a3ea5cd0e8c |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-12-12T11:50:55Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-4c260c6b707246a7b3cc6a3ea5cd0e8c2022-12-22T00:25:20ZengElsevieriScience2589-00422022-07-01257104532Computing metasurfaces enabled chiral edge image sensingRuisi Wang0Shanshan He1Shizhen Chen2Weixing Shu3Shuangchun Wen4Hailu Luo5Laboratory for Spin Photonics, School of Physics and Electronics, Hunan University, Changsha 410082, ChinaLaboratory for Spin Photonics, School of Physics and Electronics, Hunan University, Changsha 410082, ChinaLaboratory for Spin Photonics, School of Physics and Electronics, Hunan University, Changsha 410082, ChinaLaboratory for Spin Photonics, School of Physics and Electronics, Hunan University, Changsha 410082, ChinaLaboratory for Spin Photonics, School of Physics and Electronics, Hunan University, Changsha 410082, ChinaLaboratory for Spin Photonics, School of Physics and Electronics, Hunan University, Changsha 410082, China; Corresponding authorSummary: Computing metasurfaces have shown the extraordinary ability to precisely perform optical analog operations to the input light wave, and therefore exhibit greater potentials toward sensing applications. Here, we propose a unique application of computing metasurface for chiral edge sensing by incorporating a weak-value amplification technique. The computing metasurface performs the spatial differentiation operations of phase objects and extracts the edge-enhanced images, because the phase gradient generally occurs at the edge. The chirality-induced polarization rotation acts as the preselection state and the spatial differentiation operations in the metasurface provide weak coupling. The amplified pointer shift related to the tiny polarization rotation will eventually lead to an asymmetric edge-enhanced image. Owing to the high sensitivity of the weak-value amplification, we experimentally demonstrate a high-contrast recognition of chirality by edge detection, which may have potential applications in real-time measurement and separation of chiral enantiomers.http://www.sciencedirect.com/science/article/pii/S2589004222008033PhysicsMaterials scienceMaterials physics |
| spellingShingle | Ruisi Wang Shanshan He Shizhen Chen Weixing Shu Shuangchun Wen Hailu Luo Computing metasurfaces enabled chiral edge image sensing iScience Physics Materials science Materials physics |
| title | Computing metasurfaces enabled chiral edge image sensing |
| title_full | Computing metasurfaces enabled chiral edge image sensing |
| title_fullStr | Computing metasurfaces enabled chiral edge image sensing |
| title_full_unstemmed | Computing metasurfaces enabled chiral edge image sensing |
| title_short | Computing metasurfaces enabled chiral edge image sensing |
| title_sort | computing metasurfaces enabled chiral edge image sensing |
| topic | Physics Materials science Materials physics |
| url | http://www.sciencedirect.com/science/article/pii/S2589004222008033 |
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