Ultrahigh-Q guided mode resonances in an All-dielectric metasurface
Abstract High quality(Q) factor optical resonators are indispensable for many photonic devices. While very large Q-factors can be obtained theoretically in guided-mode settings, free-space implementations suffer from various limitations on the narrowest linewidth in real experiments. Here, we propos...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-06-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-39227-5 |
| _version_ | 1797806666790469632 |
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| author | Lujun Huang Rong Jin Chaobiao Zhou Guanhai Li Lei Xu Adam Overvig Fu Deng Xiaoshuang Chen Wei Lu Andrea Alù Andrey E. Miroshnichenko |
| author_facet | Lujun Huang Rong Jin Chaobiao Zhou Guanhai Li Lei Xu Adam Overvig Fu Deng Xiaoshuang Chen Wei Lu Andrea Alù Andrey E. Miroshnichenko |
| author_sort | Lujun Huang |
| collection | DOAJ |
| description | Abstract High quality(Q) factor optical resonators are indispensable for many photonic devices. While very large Q-factors can be obtained theoretically in guided-mode settings, free-space implementations suffer from various limitations on the narrowest linewidth in real experiments. Here, we propose a simple strategy to enable ultrahigh-Q guided-mode resonances by introducing a patterned perturbation layer on top of a multilayer-waveguide system. We demonstrate that the associated Q-factors are inversely proportional to the perturbation squared while the resonant wavelength can be tuned through material or structural parameters. We experimentally demonstrate such high-Q resonances at telecom wavelengths by patterning a low-index layer on top of a 220 nm silicon on insulator substrate. The measurements show Q-factors up to 2.39 × 105, comparable to the largest Q-factor obtained by topological engineering, while the resonant wavelength is tuned by varying the lattice constant of the top perturbation layer. Our results hold great promise for exciting applications like sensors and filters. |
| first_indexed | 2024-03-13T06:10:45Z |
| format | Article |
| id | doaj.art-b917462d45c74ab79fe17f0d198f3a04 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-13T06:10:45Z |
| publishDate | 2023-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-b917462d45c74ab79fe17f0d198f3a042023-06-11T11:19:33ZengNature PortfolioNature Communications2041-17232023-06-011411910.1038/s41467-023-39227-5Ultrahigh-Q guided mode resonances in an All-dielectric metasurfaceLujun Huang0Rong Jin1Chaobiao Zhou2Guanhai Li3Lei Xu4Adam Overvig5Fu Deng6Xiaoshuang Chen7Wei Lu8Andrea Alù9Andrey E. Miroshnichenko10School of Engineering and Information Technology, University of New South WalesState Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesSchool of Physics and Mechatronic Engineering, Guizhou Minzu UniversityState Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesAdvanced Optics and Photonics Laboratory, Department of Engineering, School of Science Technology, Nottingham Trent UniversityPhotonics Initiative, Advanced Science Research Center, City University of New YorkSchool of Engineering and Information Technology, University of New South WalesState Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesState Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesPhotonics Initiative, Advanced Science Research Center, City University of New YorkSchool of Engineering and Information Technology, University of New South WalesAbstract High quality(Q) factor optical resonators are indispensable for many photonic devices. While very large Q-factors can be obtained theoretically in guided-mode settings, free-space implementations suffer from various limitations on the narrowest linewidth in real experiments. Here, we propose a simple strategy to enable ultrahigh-Q guided-mode resonances by introducing a patterned perturbation layer on top of a multilayer-waveguide system. We demonstrate that the associated Q-factors are inversely proportional to the perturbation squared while the resonant wavelength can be tuned through material or structural parameters. We experimentally demonstrate such high-Q resonances at telecom wavelengths by patterning a low-index layer on top of a 220 nm silicon on insulator substrate. The measurements show Q-factors up to 2.39 × 105, comparable to the largest Q-factor obtained by topological engineering, while the resonant wavelength is tuned by varying the lattice constant of the top perturbation layer. Our results hold great promise for exciting applications like sensors and filters.https://doi.org/10.1038/s41467-023-39227-5 |
| spellingShingle | Lujun Huang Rong Jin Chaobiao Zhou Guanhai Li Lei Xu Adam Overvig Fu Deng Xiaoshuang Chen Wei Lu Andrea Alù Andrey E. Miroshnichenko Ultrahigh-Q guided mode resonances in an All-dielectric metasurface Nature Communications |
| title | Ultrahigh-Q guided mode resonances in an All-dielectric metasurface |
| title_full | Ultrahigh-Q guided mode resonances in an All-dielectric metasurface |
| title_fullStr | Ultrahigh-Q guided mode resonances in an All-dielectric metasurface |
| title_full_unstemmed | Ultrahigh-Q guided mode resonances in an All-dielectric metasurface |
| title_short | Ultrahigh-Q guided mode resonances in an All-dielectric metasurface |
| title_sort | ultrahigh q guided mode resonances in an all dielectric metasurface |
| url | https://doi.org/10.1038/s41467-023-39227-5 |
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