Flatband nonlinear metasurface for broad-angle photon-pair generation
Current nonlinear metasurface photon-pair sources face limitations in angular emission range and uniformity due to optical resonance dispersion, potentially hindering their application in quantum imaging, which demands broad-angle emission for a wide field of view and high resolution. Here, we propo...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-06-01
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| Series: | APL Quantum |
| Online Access: | http://dx.doi.org/10.1063/5.0247669 |
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| author | Yuxin Jiang Jihua Zhang Jinyong Ma Dragomir N. Neshev Andrey A. Sukhorukov |
| author_facet | Yuxin Jiang Jihua Zhang Jinyong Ma Dragomir N. Neshev Andrey A. Sukhorukov |
| author_sort | Yuxin Jiang |
| collection | DOAJ |
| description | Current nonlinear metasurface photon-pair sources face limitations in angular emission range and uniformity due to optical resonance dispersion, potentially hindering their application in quantum imaging, which demands broad-angle emission for a wide field of view and high resolution. Here, we propose a broad-angle photon-pair source using flatband engineering. We demonstrate that tailored partially etched patterns in a lithium niobate metasurface can facilitate a flatband across a wide transverse wavevector range (±0.2 rad/μm) around a 1573 nm wavelength. The flatband metasurface supports enhanced photon-pair generation at a simulated rate of 539 Hz/mW within a cone of 3° apex angle relative to the pump propagation, which is an order of magnitude broader than previously reported metasurfaces. This general approach is also scalable to other wavelengths, opening new possibilities for compact entangled photon-pair sources in quantum imaging. |
| format | Article |
| id | doaj-art-53e712c054eb4a28b9c19f12a5630885 |
| institution | DOAJ |
| issn | 2835-0103 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Quantum |
| spelling | doaj-art-53e712c054eb4a28b9c19f12a56308852025-08-20T03:14:58ZengAIP Publishing LLCAPL Quantum2835-01032025-06-0122026115026115-1010.1063/5.0247669Flatband nonlinear metasurface for broad-angle photon-pair generationYuxin Jiang0Jihua Zhang1Jinyong Ma2Dragomir N. Neshev3Andrey A. Sukhorukov4ARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS), Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2600, AustraliaARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS), Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2600, AustraliaARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS), Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2600, AustraliaARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS), Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2600, AustraliaARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS), Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2600, AustraliaCurrent nonlinear metasurface photon-pair sources face limitations in angular emission range and uniformity due to optical resonance dispersion, potentially hindering their application in quantum imaging, which demands broad-angle emission for a wide field of view and high resolution. Here, we propose a broad-angle photon-pair source using flatband engineering. We demonstrate that tailored partially etched patterns in a lithium niobate metasurface can facilitate a flatband across a wide transverse wavevector range (±0.2 rad/μm) around a 1573 nm wavelength. The flatband metasurface supports enhanced photon-pair generation at a simulated rate of 539 Hz/mW within a cone of 3° apex angle relative to the pump propagation, which is an order of magnitude broader than previously reported metasurfaces. This general approach is also scalable to other wavelengths, opening new possibilities for compact entangled photon-pair sources in quantum imaging.http://dx.doi.org/10.1063/5.0247669 |
| spellingShingle | Yuxin Jiang Jihua Zhang Jinyong Ma Dragomir N. Neshev Andrey A. Sukhorukov Flatband nonlinear metasurface for broad-angle photon-pair generation APL Quantum |
| title | Flatband nonlinear metasurface for broad-angle photon-pair generation |
| title_full | Flatband nonlinear metasurface for broad-angle photon-pair generation |
| title_fullStr | Flatband nonlinear metasurface for broad-angle photon-pair generation |
| title_full_unstemmed | Flatband nonlinear metasurface for broad-angle photon-pair generation |
| title_short | Flatband nonlinear metasurface for broad-angle photon-pair generation |
| title_sort | flatband nonlinear metasurface for broad angle photon pair generation |
| url | http://dx.doi.org/10.1063/5.0247669 |
| work_keys_str_mv | AT yuxinjiang flatbandnonlinearmetasurfaceforbroadanglephotonpairgeneration AT jihuazhang flatbandnonlinearmetasurfaceforbroadanglephotonpairgeneration AT jinyongma flatbandnonlinearmetasurfaceforbroadanglephotonpairgeneration AT dragomirnneshev flatbandnonlinearmetasurfaceforbroadanglephotonpairgeneration AT andreyasukhorukov flatbandnonlinearmetasurfaceforbroadanglephotonpairgeneration |