Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics
Abstract State-of-the-art photon sources based on spontaneous parametric down-conversion (SPDC) currently rely on artificial structuring of the material nonlinearity to satisfy phase-matching conditions. This technique, known as periodic poling, is available only in a limited number of material plat...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-03-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-92705-2 |
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| author | Tim F. Weiss Hamed Arianfard Yang Yang Alberto Peruzzo |
| author_facet | Tim F. Weiss Hamed Arianfard Yang Yang Alberto Peruzzo |
| author_sort | Tim F. Weiss |
| collection | DOAJ |
| description | Abstract State-of-the-art photon sources based on spontaneous parametric down-conversion (SPDC) currently rely on artificial structuring of the material nonlinearity to satisfy phase-matching conditions. This technique, known as periodic poling, is available only in a limited number of material platforms and introduces additional fabrication steps and errors, which are detrimental to up-scaling efforts. Here, we present a device architecture that enables SPDC of a wide range of frequencies without the need for periodic poling. We present explicit designs and calculations for 4H Silicon Carbide on-insulator, in which SPDC photon generation is so far unavailable, and thin-film Lithium Niobate on-insulator, a state-of-the-art quantum photonics platform. Our design, based on mode conversion and subsequent modal phase-matched SPDC, facilitates a CMOS compatible $$\chi ^{(2)}$$ platform, and simplifies photon sources by removing the requirement of periodic poling and the associated additional fabrication complexity. |
| format | Article |
| id | doaj-art-947138ca3b8c43779bd69b6cebfbac9e |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-947138ca3b8c43779bd69b6cebfbac9e2025-08-20T03:52:20ZengNature PortfolioScientific Reports2045-23222025-03-011511710.1038/s41598-025-92705-2Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonicsTim F. Weiss0Hamed Arianfard1Yang Yang2Alberto Peruzzo3Quantum Photonics Laboratory and Centre for Quantum Computation and Communication Technology, RMIT UniversityQuantum Photonics Laboratory and Centre for Quantum Computation and Communication Technology, RMIT UniversityQuantum Photonics Laboratory and Centre for Quantum Computation and Communication Technology, RMIT UniversityQuantum Photonics Laboratory and Centre for Quantum Computation and Communication Technology, RMIT UniversityAbstract State-of-the-art photon sources based on spontaneous parametric down-conversion (SPDC) currently rely on artificial structuring of the material nonlinearity to satisfy phase-matching conditions. This technique, known as periodic poling, is available only in a limited number of material platforms and introduces additional fabrication steps and errors, which are detrimental to up-scaling efforts. Here, we present a device architecture that enables SPDC of a wide range of frequencies without the need for periodic poling. We present explicit designs and calculations for 4H Silicon Carbide on-insulator, in which SPDC photon generation is so far unavailable, and thin-film Lithium Niobate on-insulator, a state-of-the-art quantum photonics platform. Our design, based on mode conversion and subsequent modal phase-matched SPDC, facilitates a CMOS compatible $$\chi ^{(2)}$$ platform, and simplifies photon sources by removing the requirement of periodic poling and the associated additional fabrication complexity.https://doi.org/10.1038/s41598-025-92705-2 |
| spellingShingle | Tim F. Weiss Hamed Arianfard Yang Yang Alberto Peruzzo Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics Scientific Reports |
| title | Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics |
| title_full | Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics |
| title_fullStr | Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics |
| title_full_unstemmed | Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics |
| title_short | Spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics |
| title_sort | spontaneous parametric down conversion without poling for silicon carbide and lithium niobate photonics |
| url | https://doi.org/10.1038/s41598-025-92705-2 |
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