Functionality multiplexing in high-efficiency metasurfaces based on coherent wave interferences
Multiplexing multiple yet distinct functionalities in one single device is highly desired for modern integration optics, but conventional devices are usually of bulky sizes and/or low efficiencies. While recently proposed metasurfaces can be ultra-thin and highly efficient, functionalities multiplex...
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| Format: | Article |
| Language: | English |
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Institue of Optics and Electronics, Chinese Academy of Sciences
2024-11-01
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| Series: | Opto-Electronic Advances |
| Subjects: | |
| Online Access: | https://www.oejournal.org/article/doi/10.29026/oea.2024.240086 |
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| author | Yuejiao Zhou Tong Liu Changhong Dai Dongyi Wang Lei Zhou |
| author_facet | Yuejiao Zhou Tong Liu Changhong Dai Dongyi Wang Lei Zhou |
| author_sort | Yuejiao Zhou |
| collection | DOAJ |
| description | Multiplexing multiple yet distinct functionalities in one single device is highly desired for modern integration optics, but conventional devices are usually of bulky sizes and/or low efficiencies. While recently proposed metasurfaces can be ultra-thin and highly efficient, functionalities multiplexed by metadevices so far are typically restricted to two, dictated by the number of independent polarization states of the incident light. Here, we propose a generic approach to design metadevices exhibiting wave-control functionalities far exceeding two, based on coherent wave interferences continuously tuned by varying the incident polarization. After designing a series of building-block metaatoms with optical properties experimentally characterized, we construct two metadevices based on the proposed strategy and experimentally demonstrate their polarization-tuned multifunctionalities at the wavelength of 1550 nm. Specifically, upon continuously modulating the incident polarization along different paths on the Poincare’s sphere, we show that the first device can generate two spatially non-overlapping vortex beams with strengths continuously tuned, while the second device can generate a vectorial vortex beam carrying continuously-tuned polarization distribution and/or orbital angular momentum. Our proposed strategy significantly expands the wave-control functionalities equipped with a single optical device, which may stimulate numerous applications in integration optics. |
| format | Article |
| id | doaj-art-5f1f8f166bd14ec59bdf43f72c7efaed |
| institution | Kabale University |
| issn | 2096-4579 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Institue of Optics and Electronics, Chinese Academy of Sciences |
| record_format | Article |
| series | Opto-Electronic Advances |
| spelling | doaj-art-5f1f8f166bd14ec59bdf43f72c7efaed2025-01-11T07:03:41ZengInstitue of Optics and Electronics, Chinese Academy of SciencesOpto-Electronic Advances2096-45792024-11-0171111310.29026/oea.2024.240086OEA-2024-0086ZhouleiFunctionality multiplexing in high-efficiency metasurfaces based on coherent wave interferencesYuejiao Zhou0Tong Liu1Changhong Dai2Dongyi Wang3Lei Zhou4State Key Laboratory of Surface Physics, Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Shanghai Key Laboratory of Metasurfaces for Light Manipulation and Department of Physics, Fudan University, Shanghai 200438, ChinaDepartment of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, ChinaState Key Laboratory of Surface Physics, Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Shanghai Key Laboratory of Metasurfaces for Light Manipulation and Department of Physics, Fudan University, Shanghai 200438, ChinaDepartment of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, ChinaState Key Laboratory of Surface Physics, Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Shanghai Key Laboratory of Metasurfaces for Light Manipulation and Department of Physics, Fudan University, Shanghai 200438, ChinaMultiplexing multiple yet distinct functionalities in one single device is highly desired for modern integration optics, but conventional devices are usually of bulky sizes and/or low efficiencies. While recently proposed metasurfaces can be ultra-thin and highly efficient, functionalities multiplexed by metadevices so far are typically restricted to two, dictated by the number of independent polarization states of the incident light. Here, we propose a generic approach to design metadevices exhibiting wave-control functionalities far exceeding two, based on coherent wave interferences continuously tuned by varying the incident polarization. After designing a series of building-block metaatoms with optical properties experimentally characterized, we construct two metadevices based on the proposed strategy and experimentally demonstrate their polarization-tuned multifunctionalities at the wavelength of 1550 nm. Specifically, upon continuously modulating the incident polarization along different paths on the Poincare’s sphere, we show that the first device can generate two spatially non-overlapping vortex beams with strengths continuously tuned, while the second device can generate a vectorial vortex beam carrying continuously-tuned polarization distribution and/or orbital angular momentum. Our proposed strategy significantly expands the wave-control functionalities equipped with a single optical device, which may stimulate numerous applications in integration optics.https://www.oejournal.org/article/doi/10.29026/oea.2024.240086metasurfacecoherent wave interferencesvectorial vortex beamfunctionality multiplexingorbital angular momentumlocal polarization distributionspolarization-dependent |
| spellingShingle | Yuejiao Zhou Tong Liu Changhong Dai Dongyi Wang Lei Zhou Functionality multiplexing in high-efficiency metasurfaces based on coherent wave interferences Opto-Electronic Advances metasurface coherent wave interferences vectorial vortex beam functionality multiplexing orbital angular momentum local polarization distributions polarization-dependent |
| title | Functionality multiplexing in high-efficiency metasurfaces based on coherent wave interferences |
| title_full | Functionality multiplexing in high-efficiency metasurfaces based on coherent wave interferences |
| title_fullStr | Functionality multiplexing in high-efficiency metasurfaces based on coherent wave interferences |
| title_full_unstemmed | Functionality multiplexing in high-efficiency metasurfaces based on coherent wave interferences |
| title_short | Functionality multiplexing in high-efficiency metasurfaces based on coherent wave interferences |
| title_sort | functionality multiplexing in high efficiency metasurfaces based on coherent wave interferences |
| topic | metasurface coherent wave interferences vectorial vortex beam functionality multiplexing orbital angular momentum local polarization distributions polarization-dependent |
| url | https://www.oejournal.org/article/doi/10.29026/oea.2024.240086 |
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