Non-orthogonal polarization multiplexed metasurfaces for tri-channel polychromatic image displays and information encryption
Interference usually occurs between two non-orthogonally polarized light beams. Hence, metasurface enabled polarization multiplexing is generally conducted under two orthogonal polarization states to realize independent intensity and/or phase modulations. Herein, we show that polarization multiplexe...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2021-08-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2021-0259 |
| _version_ | 1818738513310384128 |
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| author | Ren Renyuan Li Zile Deng Liangui Shan Xin Dai Qi Guan Zhiqiang Zheng Guoxing Yu Shaohua |
| author_facet | Ren Renyuan Li Zile Deng Liangui Shan Xin Dai Qi Guan Zhiqiang Zheng Guoxing Yu Shaohua |
| author_sort | Ren Renyuan |
| collection | DOAJ |
| description | Interference usually occurs between two non-orthogonally polarized light beams. Hence, metasurface enabled polarization multiplexing is generally conducted under two orthogonal polarization states to realize independent intensity and/or phase modulations. Herein, we show that polarization multiplexed metasurfaces can work under three non-orthogonal polarization states to realize tri-channel image displays with independent information encoding. Specifically, enabled by orientation degeneracy, each nanostructure of the metasurface operates with triple-manipulations of light, i.e., two channels for independent intensity manipulation under π/4 and 3π/8 linearly polarized (LP) light, respectively, and one channel for phase manipulation without polarization control. We experimentally demonstrate this concept by recording one continuous-brightness polychromatic image and one binary-brightness polychromatic image right at the metasurface plane, while a continuous-brightness polychromatic image is reconstructed in the far field, corresponding to three independent channels, respectively. More interestingly, in another design strategy with separated image encoding of two wavelengths, up to six independent image-display channels can be established and information delivery becomes safer by utilizing encryption algorithms. With the features of high information capacity and high security, the proposed meta-devices can empower advanced research and applications in multi-channel image displays, orbital angular momentum multiplexing communication, information encryption, anti-counterfeiting, multifunctional integrated nano-optoelectronics, etc. |
| first_indexed | 2024-12-18T01:10:08Z |
| format | Article |
| id | doaj.art-6a625937ba2548a7b70082afe4389de4 |
| institution | Directory Open Access Journal |
| issn | 2192-8614 |
| language | English |
| last_indexed | 2024-12-18T01:10:08Z |
| publishDate | 2021-08-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-6a625937ba2548a7b70082afe4389de42022-12-21T21:26:08ZengDe GruyterNanophotonics2192-86142021-08-0110112903291410.1515/nanoph-2021-0259Non-orthogonal polarization multiplexed metasurfaces for tri-channel polychromatic image displays and information encryptionRen Renyuan0Li Zile1Deng Liangui2Shan Xin3Dai Qi4Guan Zhiqiang5Zheng Guoxing6Yu Shaohua7Electronic Information School, Wuhan University, Wuhan, ChinaElectronic Information School, Wuhan University, Wuhan, ChinaElectronic Information School, Wuhan University, Wuhan, ChinaElectronic Information School, Wuhan University, Wuhan, ChinaElectronic Information School, Wuhan University, Wuhan, ChinaSchool of Physics and Technology, Wuhan University, Wuhan, ChinaElectronic Information School, Wuhan University, Wuhan, ChinaPeng Cheng Laboratory, Shenzhen, ChinaInterference usually occurs between two non-orthogonally polarized light beams. Hence, metasurface enabled polarization multiplexing is generally conducted under two orthogonal polarization states to realize independent intensity and/or phase modulations. Herein, we show that polarization multiplexed metasurfaces can work under three non-orthogonal polarization states to realize tri-channel image displays with independent information encoding. Specifically, enabled by orientation degeneracy, each nanostructure of the metasurface operates with triple-manipulations of light, i.e., two channels for independent intensity manipulation under π/4 and 3π/8 linearly polarized (LP) light, respectively, and one channel for phase manipulation without polarization control. We experimentally demonstrate this concept by recording one continuous-brightness polychromatic image and one binary-brightness polychromatic image right at the metasurface plane, while a continuous-brightness polychromatic image is reconstructed in the far field, corresponding to three independent channels, respectively. More interestingly, in another design strategy with separated image encoding of two wavelengths, up to six independent image-display channels can be established and information delivery becomes safer by utilizing encryption algorithms. With the features of high information capacity and high security, the proposed meta-devices can empower advanced research and applications in multi-channel image displays, orbital angular momentum multiplexing communication, information encryption, anti-counterfeiting, multifunctional integrated nano-optoelectronics, etc.https://doi.org/10.1515/nanoph-2021-0259holographymetasurfacenanoprintingorientation degeneracypolychromatic |
| spellingShingle | Ren Renyuan Li Zile Deng Liangui Shan Xin Dai Qi Guan Zhiqiang Zheng Guoxing Yu Shaohua Non-orthogonal polarization multiplexed metasurfaces for tri-channel polychromatic image displays and information encryption Nanophotonics holography metasurface nanoprinting orientation degeneracy polychromatic |
| title | Non-orthogonal polarization multiplexed metasurfaces for tri-channel polychromatic image displays and information encryption |
| title_full | Non-orthogonal polarization multiplexed metasurfaces for tri-channel polychromatic image displays and information encryption |
| title_fullStr | Non-orthogonal polarization multiplexed metasurfaces for tri-channel polychromatic image displays and information encryption |
| title_full_unstemmed | Non-orthogonal polarization multiplexed metasurfaces for tri-channel polychromatic image displays and information encryption |
| title_short | Non-orthogonal polarization multiplexed metasurfaces for tri-channel polychromatic image displays and information encryption |
| title_sort | non orthogonal polarization multiplexed metasurfaces for tri channel polychromatic image displays and information encryption |
| topic | holography metasurface nanoprinting orientation degeneracy polychromatic |
| url | https://doi.org/10.1515/nanoph-2021-0259 |
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