Photons can be split into multiple lower-energy photons through nonlinear optical processes

the verdict

SUPPORTED

the evidence backs this

Recorded sources

3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Photons can indeed be split into multiple lower-energy photons through nonlinear optical processes such as spontaneous parametric down-conversion.

The analysis

The retrieved papers consistently support the claim by discussing and experimentally demonstrating spontaneous parametric down-conversion (SPDC) and related nonlinear optical processes where a higher-energy photon is split into multiple lower-energy photons.

Evidence for · 3

Photon pairs bi-directionally emitted from a resonant metasurface.

Recorded source metadata

Changjin Son, V. Sultanov, Tomás Santiago-Cruz, A. Anthur, Haizhong Zhang, R. Paniagua‐Domínguez, L. Krivitsky, A. Kuznetsov, M. Chekhova. Photon pairs bi-directionally emitted from a resonant metasurface.. 2023. https://doi.org/10.1039/d2nr05499j

The paper demonstrates the generation of photon pairs via spontaneous parametric down conversion from a metasurface, a nonlinear optical process splitting higher-energy photons into lower-energy pairs.

Source citation format

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More for · 2

Integrated, bright broadband, two-colour parametric down-conversion source.

Recorded source metadata

R. Pollmann, F. Roeder, V. Quiring, R. Ricken, C. Eigner, B. Brecht, C. Silberhorn. Integrated, bright broadband, two-colour parametric down-conversion source.. 2024. https://doi.org/10.1364/OE.522549

This study discusses spontaneous parametric down-conversion as a mechanism in waveguides that splits pump photons into lower-energy entangled photon pairs.

Source citation format

Nanodomain poling unlocking backward nonlinear light generation in thin film lithium niobate.

Recorded source metadata

Sabatti A, Kellner J, Chapman RJ, Grange R. Nanodomain poling unlocking backward nonlinear light generation in thin film lithium niobate.. 2025. https://doi.org/10.1515/nanoph-2025-0429

The work utilizes spontaneous parametric down-conversion in thin-film lithium niobate to achieve backward nonlinear frequency conversion and generate photon pairs.

Source citation format

The paper trail · every fact has a biography

first checked01 Aug 2026

judged → SUPPORTED · 8501 Aug 2026

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