Enhanced generation of non-degenerate photon-pairs in nonlinear metasurfaces

• URL: http://arxiv.org/abs/2104.07299v2
• Date: Tue, 11 May 2021 06:59:09 GMT
• Title: Enhanced generation of non-degenerate photon-pairs in nonlinear metasurfaces
• Authors: Matthew Parry, Andrea Mazzanti, Alexander Poddubny, Giuseppe Della Valle, Dragomir N. Neshev, Andrey A. Sukhorukov
• Abstract summary: Non-degenerate photon-pair generation can enable orders-of-surface enhancement of the photon rate and spectral brightness. We show that the entanglement of the photon-pairs can be tuned by varying the pump polarization, which can underpin future advances and applications of ultra-compact quantum light sources.
• Score: 55.41644538483948
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We reveal a novel regime of photon-pair generation driven by the interplay of multiple bound states in the continuum resonances in nonlinear metasurfaces. This non-degenerate photon-pair generation is derived from the hyperbolic topology of the transverse phase-matching and can enable orders-of-magnitude enhancement of the photon rate and spectral brightness, as compared to the degenerate regime. We show that the entanglement of the photon-pairs can be tuned by varying the pump polarization, which can underpin future advances and applications of ultra-compact quantum light sources.

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