Million-Q free space meta-optical resonator at near-visible wavelengths
Abstract High-quality (Q)-factor optical resonators with extreme temporal coherence are of both technological and fundamental importance in optical metrology, continuous-wave lasing, and semiconductor quantum optics. Despite extensive efforts in designing high-Q resonators across different spectral...
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Nature Portfolio
2024-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-54775-0 |
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| author | Jie Fang Rui Chen David Sharp Enrico M. Renzi Arnab Manna Abhinav Kala Sander A. Mann Kan Yao Christopher Munley Hannah Rarick Andrew Tang Sinabu Pumulo Yuebing Zheng Vinod M. Menon Andrea Alù Arka Majumdar |
| author_facet | Jie Fang Rui Chen David Sharp Enrico M. Renzi Arnab Manna Abhinav Kala Sander A. Mann Kan Yao Christopher Munley Hannah Rarick Andrew Tang Sinabu Pumulo Yuebing Zheng Vinod M. Menon Andrea Alù Arka Majumdar |
| author_sort | Jie Fang |
| collection | DOAJ |
| description | Abstract High-quality (Q)-factor optical resonators with extreme temporal coherence are of both technological and fundamental importance in optical metrology, continuous-wave lasing, and semiconductor quantum optics. Despite extensive efforts in designing high-Q resonators across different spectral regimes, the experimental realization of very large Q-factors at visible wavelengths remains challenging due to the small feature size that is sensitive to fabrication imperfections, and thus is typically implemented in integrated photonics. In the pursuit of free-space optics with the benefits of large space-bandwidth product and massive parallel operations, here we design and fabricate a near-visible-wavelength etch-free metasurface with minimized fabrication defects and experimentally demonstrate a million-scale ultrahigh-Q resonance. A new laser-scanning momentum-space-resolved spectroscopy technique with extremely high spectral and angular resolution is developed to characterize the record-high Q-factor as well as the dispersion of the million-Q resonance in free space. By integrating monolayer WSe2 into our ultrahigh-Q meta-resonator, we further demonstrate laser-like highly unidirectional and narrow-linewidth exciton emission, albeit without any operating power density threshold. Under continuous-wave laser pumping, we observe pump-power-dependent linewidth narrowing at room temperature, indicating the potential of our meta-optics platform in controlling coherent quantum light-sources. Our result also holds great promise for applications like optical sensing, spectral filtering, and few-photon nonlinear optics. |
| format | Article |
| id | doaj-art-d44bbe7eb1de45eaae40c367e45b3bb8 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-d44bbe7eb1de45eaae40c367e45b3bb82024-12-01T12:34:35ZengNature PortfolioNature Communications2041-17232024-11-0115111110.1038/s41467-024-54775-0Million-Q free space meta-optical resonator at near-visible wavelengthsJie Fang0Rui Chen1David Sharp2Enrico M. Renzi3Arnab Manna4Abhinav Kala5Sander A. Mann6Kan Yao7Christopher Munley8Hannah Rarick9Andrew Tang10Sinabu Pumulo11Yuebing Zheng12Vinod M. Menon13Andrea Alù14Arka Majumdar15Department of Electrical and Computer Engineering, University of WashingtonDepartment of Electrical and Computer Engineering, University of WashingtonDepartment of Physics, University of WashingtonPhotonics Initiative, Advanced Science Research Center, City University of New YorkDepartment of Physics, University of WashingtonDepartment of Electrical and Computer Engineering, University of WashingtonPhotonics Initiative, Advanced Science Research Center, City University of New YorkWalker Department of Mechanical Engineering and Texas Materials Institute, The University of Texas at AustinDepartment of Physics, University of WashingtonDepartment of Physics, University of WashingtonDepartment of Electrical and Computer Engineering, University of WashingtonDepartment of Materials Science and Engineering, University of WashingtonWalker Department of Mechanical Engineering and Texas Materials Institute, The University of Texas at AustinPhysics Program, Graduate Center, City University of New YorkPhotonics Initiative, Advanced Science Research Center, City University of New YorkDepartment of Electrical and Computer Engineering, University of WashingtonAbstract High-quality (Q)-factor optical resonators with extreme temporal coherence are of both technological and fundamental importance in optical metrology, continuous-wave lasing, and semiconductor quantum optics. Despite extensive efforts in designing high-Q resonators across different spectral regimes, the experimental realization of very large Q-factors at visible wavelengths remains challenging due to the small feature size that is sensitive to fabrication imperfections, and thus is typically implemented in integrated photonics. In the pursuit of free-space optics with the benefits of large space-bandwidth product and massive parallel operations, here we design and fabricate a near-visible-wavelength etch-free metasurface with minimized fabrication defects and experimentally demonstrate a million-scale ultrahigh-Q resonance. A new laser-scanning momentum-space-resolved spectroscopy technique with extremely high spectral and angular resolution is developed to characterize the record-high Q-factor as well as the dispersion of the million-Q resonance in free space. By integrating monolayer WSe2 into our ultrahigh-Q meta-resonator, we further demonstrate laser-like highly unidirectional and narrow-linewidth exciton emission, albeit without any operating power density threshold. Under continuous-wave laser pumping, we observe pump-power-dependent linewidth narrowing at room temperature, indicating the potential of our meta-optics platform in controlling coherent quantum light-sources. Our result also holds great promise for applications like optical sensing, spectral filtering, and few-photon nonlinear optics.https://doi.org/10.1038/s41467-024-54775-0 |
| spellingShingle | Jie Fang Rui Chen David Sharp Enrico M. Renzi Arnab Manna Abhinav Kala Sander A. Mann Kan Yao Christopher Munley Hannah Rarick Andrew Tang Sinabu Pumulo Yuebing Zheng Vinod M. Menon Andrea Alù Arka Majumdar Million-Q free space meta-optical resonator at near-visible wavelengths Nature Communications |
| title | Million-Q free space meta-optical resonator at near-visible wavelengths |
| title_full | Million-Q free space meta-optical resonator at near-visible wavelengths |
| title_fullStr | Million-Q free space meta-optical resonator at near-visible wavelengths |
| title_full_unstemmed | Million-Q free space meta-optical resonator at near-visible wavelengths |
| title_short | Million-Q free space meta-optical resonator at near-visible wavelengths |
| title_sort | million q free space meta optical resonator at near visible wavelengths |
| url | https://doi.org/10.1038/s41467-024-54775-0 |
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