Quantum Pair Generation in Nonlinear Metasurfaces with Mixed and Pure Photon Polarizations
Noh J, Santiago-Cruz T, Sultanov V, Doiron CF, Gennaro SD, Chekhova MV, Brener I (2024)
Publication Type: Journal article
Publication year: 2024
Journal
DOI: 10.1021/acs.nanolett.4c04398
Abstract
Metasurfaces are highly effective at manipulating classical light in the linear regime; however, effectively controlling the polarization of nonclassical light generated from nonlinear resonant metasurfaces remains a challenge. Here, we present a solution by achieving polarization engineering of frequency-nondegenerate biphotons emitted via spontaneous parametric down-conversion in GaAs metasurfaces, utilizing quasi-bound states in the continuum (qBIC) resonances to enhance biphoton generation. Through comprehensive polarization tomography, we demonstrate that the emitted photons’ polarization directly reflects the qBIC mode’s far-field properties. Furthermore, we show that both the type of qBIC mode and the symmetry of the meta-atoms can be tailored to control each single-photon polarization state, and that the subsequent two-photon polarization states are nearly separable, offering potential applications in the heralded generation of single photons with adjustable polarization. This work provides a significant step toward utilizing metasurfaces to generate quantum light and engineer their polarization, a critical aspect for future quantum technologies.
Authors with CRIS profile
Additional Organisation(s)
Involved external institutions
Sandia National Laboratories
United States (USA) (US)
Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light
Germany (DE)
United States (USA) (US)
Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light
Germany (DE)
How to cite
APA:
Noh, J., Santiago-Cruz, T., Sultanov, V., Doiron, C.F., Gennaro, S.D., Chekhova, M.V., & Brener, I. (2024). Quantum Pair Generation in Nonlinear Metasurfaces with Mixed and Pure Photon Polarizations. Nano Letters. https://doi.org/10.1021/acs.nanolett.4c04398
MLA:
Noh, Jiho, et al. "Quantum Pair Generation in Nonlinear Metasurfaces with Mixed and Pure Photon Polarizations." Nano Letters (2024).
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