Manipulating guided wave radiation with integrated geometric metasurface
Metasurfaces have manifested unprecedented capabilities in manipulating light by subwavelength unit cells, facilitating the miniaturization and multifunctions of optical systems. On the other hand, lithium niobate on insulator (LNOI) technology is revolutionizing the integrated photonics, enabling m...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2021-10-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2021-0466 |
| _version_ | 1797947938330116096 |
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| author | Fang Bin Wang Zhizhang Gao Shenglun Zhu Shining Li Tao |
| author_facet | Fang Bin Wang Zhizhang Gao Shenglun Zhu Shining Li Tao |
| author_sort | Fang Bin |
| collection | DOAJ |
| description | Metasurfaces have manifested unprecedented capabilities in manipulating light by subwavelength unit cells, facilitating the miniaturization and multifunctions of optical systems. On the other hand, lithium niobate on insulator (LNOI) technology is revolutionizing the integrated photonics, enabling multifunctional devices and applications. Yet the optical interface for coupling and manipulation is not sufficient and versatile. Here, we developed a geometric metasurface interface for LNOI waveguide and demonstrated several on-chip integrated devices for free space light field manipulations. By decorating waveguides with subwavelength optical antennas, we manipulated the guided waves into desired wavefronts in space, achieved complex free-space functions, such as focusing, multichannel vortex beam generation, and holography. Our architecture goes beyond the conventional gratings and enriches the functionalities of metasurface, which would open up a new perspective for future versatile guided-wave driven optical devices. |
| first_indexed | 2024-04-10T21:34:30Z |
| format | Article |
| id | doaj.art-1453d404051d4f6ca4e1fe5b56d270eb |
| institution | Directory Open Access Journal |
| issn | 2192-8614 |
| language | English |
| last_indexed | 2024-04-10T21:34:30Z |
| publishDate | 2021-10-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-1453d404051d4f6ca4e1fe5b56d270eb2023-01-19T12:46:58ZengDe GruyterNanophotonics2192-86142021-10-011191923193010.1515/nanoph-2021-0466Manipulating guided wave radiation with integrated geometric metasurfaceFang Bin0Wang Zhizhang1Gao Shenglun2Zhu Shining3Li Tao4National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing210093, ChinaNational Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing210093, ChinaNational Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing210093, ChinaNational Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing210093, ChinaNational Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing210093, ChinaMetasurfaces have manifested unprecedented capabilities in manipulating light by subwavelength unit cells, facilitating the miniaturization and multifunctions of optical systems. On the other hand, lithium niobate on insulator (LNOI) technology is revolutionizing the integrated photonics, enabling multifunctional devices and applications. Yet the optical interface for coupling and manipulation is not sufficient and versatile. Here, we developed a geometric metasurface interface for LNOI waveguide and demonstrated several on-chip integrated devices for free space light field manipulations. By decorating waveguides with subwavelength optical antennas, we manipulated the guided waves into desired wavefronts in space, achieved complex free-space functions, such as focusing, multichannel vortex beam generation, and holography. Our architecture goes beyond the conventional gratings and enriches the functionalities of metasurface, which would open up a new perspective for future versatile guided-wave driven optical devices.https://doi.org/10.1515/nanoph-2021-0466guided wavemetasurfaceoptical field manipulationthin-film lithium niobate |
| spellingShingle | Fang Bin Wang Zhizhang Gao Shenglun Zhu Shining Li Tao Manipulating guided wave radiation with integrated geometric metasurface Nanophotonics guided wave metasurface optical field manipulation thin-film lithium niobate |
| title | Manipulating guided wave radiation with integrated geometric metasurface |
| title_full | Manipulating guided wave radiation with integrated geometric metasurface |
| title_fullStr | Manipulating guided wave radiation with integrated geometric metasurface |
| title_full_unstemmed | Manipulating guided wave radiation with integrated geometric metasurface |
| title_short | Manipulating guided wave radiation with integrated geometric metasurface |
| title_sort | manipulating guided wave radiation with integrated geometric metasurface |
| topic | guided wave metasurface optical field manipulation thin-film lithium niobate |
| url | https://doi.org/10.1515/nanoph-2021-0466 |
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