Second harmonic generation of optical spin−orbit interactions in hybrid plasmonic nanocircuits
The manipulation of nonlinear spin–orbit interaction at the nanoscale is crucial for advancing information processing in integrated nanophotonics. However, the weak spin–orbit interaction (SOI) in conventional waveguide materials significantly limits the efficiency of nonlinear optical processes. In...
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-03-01
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| Series: | Nanophotonics |
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| Online Access: | https://doi.org/10.1515/nanoph-2024-0725 |
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| _version_ | 1850183895689986048 |
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| author | Shi Junjun Jing Kangcheng Li Li Zhang Wenjun Zhang Tianzhu He Xiaobo |
| author_facet | Shi Junjun Jing Kangcheng Li Li Zhang Wenjun Zhang Tianzhu He Xiaobo |
| author_sort | Shi Junjun |
| collection | DOAJ |
| description | The manipulation of nonlinear spin–orbit interaction at the nanoscale is crucial for advancing information processing in integrated nanophotonics. However, the weak spin–orbit interaction (SOI) in conventional waveguide materials significantly limits the efficiency of nonlinear optical processes. In this work, we design a hybrid plasmonic waveguide composed of a gold film and a Y-branch CdSe nanowire, which addresses the aforementioned limitations. The designed hybrid structure enables efficient directional emission of second-harmonic generation (SHG) via control of the polarization of the excitation light. The transversely emitted SHG can be visualized for directly imaging the SOI. Our work not only provides a way to enhances the efficiency of the nonlinear SOI but also a promising platform for further advances in integrated photonics and nonlinear optics. |
| format | Article |
| id | doaj-art-17fa548dcdfc4b9baa99dff5969e8f35 |
| institution | OA Journals |
| issn | 2192-8614 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-17fa548dcdfc4b9baa99dff5969e8f352025-08-20T02:17:13ZengDe GruyterNanophotonics2192-86142025-03-011471003100710.1515/nanoph-2024-0725Second harmonic generation of optical spin−orbit interactions in hybrid plasmonic nanocircuitsShi Junjun0Jing Kangcheng1Li Li2Zhang Wenjun3Zhang Tianzhu4He Xiaobo5Shandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan250014, ChinaShandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan250014, ChinaShandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan250014, ChinaInstitute of Physics, Henan Academy of Sciences, Zhengzhou450046, ChinaInstitute of Physics, Henan Academy of Sciences, Zhengzhou450046, ChinaInstitute of Physics, Henan Academy of Sciences, Zhengzhou450046, ChinaThe manipulation of nonlinear spin–orbit interaction at the nanoscale is crucial for advancing information processing in integrated nanophotonics. However, the weak spin–orbit interaction (SOI) in conventional waveguide materials significantly limits the efficiency of nonlinear optical processes. In this work, we design a hybrid plasmonic waveguide composed of a gold film and a Y-branch CdSe nanowire, which addresses the aforementioned limitations. The designed hybrid structure enables efficient directional emission of second-harmonic generation (SHG) via control of the polarization of the excitation light. The transversely emitted SHG can be visualized for directly imaging the SOI. Our work not only provides a way to enhances the efficiency of the nonlinear SOI but also a promising platform for further advances in integrated photonics and nonlinear optics.https://doi.org/10.1515/nanoph-2024-0725second harmonic generationspin–orbit interactionsurface plasmoncdse nanowirehybrid waveguide |
| spellingShingle | Shi Junjun Jing Kangcheng Li Li Zhang Wenjun Zhang Tianzhu He Xiaobo Second harmonic generation of optical spin−orbit interactions in hybrid plasmonic nanocircuits Nanophotonics second harmonic generation spin–orbit interaction surface plasmon cdse nanowire hybrid waveguide |
| title | Second harmonic generation of optical spin−orbit interactions in hybrid plasmonic nanocircuits |
| title_full | Second harmonic generation of optical spin−orbit interactions in hybrid plasmonic nanocircuits |
| title_fullStr | Second harmonic generation of optical spin−orbit interactions in hybrid plasmonic nanocircuits |
| title_full_unstemmed | Second harmonic generation of optical spin−orbit interactions in hybrid plasmonic nanocircuits |
| title_short | Second harmonic generation of optical spin−orbit interactions in hybrid plasmonic nanocircuits |
| title_sort | second harmonic generation of optical spin orbit interactions in hybrid plasmonic nanocircuits |
| topic | second harmonic generation spin–orbit interaction surface plasmon cdse nanowire hybrid waveguide |
| url | https://doi.org/10.1515/nanoph-2024-0725 |
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