Photon-pair generation via bound states in the continuum in nonlinear metasurfaces

Matthew Parry; Yifei Xing; Lei Xu; Alexander Poddubny; Dragomir N. Neshev; Andrey A. Sukhorukov

doi:10.1117/12.2539888

31 December 2019 Photon-pair generation via bound states in the continuum in nonlinear metasurfaces

Matthew Parry, Yifei Xing, Lei Xu, Alexander Poddubny, Dragomir N. Neshev, Andrey A. Sukhorukov

Proceedings Volume 11201, SPIE Micro + Nano Materials, Devices, and Applications 2019; 112010G (2019) https://doi.org/10.1117/12.2539888
Event: ANZCOP, 2019, Melbourne, Australia

Abstract

Generation of photon pairs in nonlinear materials enables the creation of non-classical entangled photon states. With ultra-thin metasurfaces, composed of optical nano-resonators, one can enable the ultimate in miniaturising nonlinear photon sources along with unprecedented configurability. We present a novel design of a nonlinear metasurface incorporating AlGaAs nanodisks with oligomer-holes, which features symmetry protected bound states in the continuum. It enables enhanced photon-pair generation at non-degenerate photon frequencies via spontaneous parametric down-conversion. This opens the potential for quantum-entanglement between photons at ultra-short time-scales across the visible and infrared regions, leading to new opportunities for quantum spectroscopy, sensing, and imaging.

Citation Download Citation

Matthew Parry, Yifei Xing, Lei Xu, Alexander Poddubny, Dragomir N. Neshev, and Andrey A. Sukhorukov "Photon-pair generation via bound states in the continuum in nonlinear metasurfaces", Proc. SPIE 11201, SPIE Micro + Nano Materials, Devices, and Applications 2019, 112010G (31 December 2019); https://doi.org/10.1117/12.2539888

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