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  • Letter
  • Open Access

Dual-resonant biphoton generation in 3R-MoS2 van der Waals membrane metasurfaces

Alexei V. Prokhorov1,*, Mikhail Yu. Gubin1, Alexander V. Shesterikov1, Aleksey V. Arsenin1, Valentyn S. Volkov1, and Andrey B. Evlyukhin2,3,†

  • 1Emerging Technologies Research Center, XPANCEO, Dubai, United Arab Emirates
  • 2Institute of Quantum Optics, Leibniz University Hannover, Welfengarten 1, 30167 Hannover, Germany
  • 3Cluster of Excellence PhoenixD, Leibniz University Hannover, Welfengarten 1A, 30167 Hannover, Germany

  • *Contact author: alprokhorov33@gmail.com
  • †Contact author: evlyukhin@iqo.uni-hannover.de
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Phys. Rev. Research 8, L022061 – Published 29 June, 2026

DOI: https://doi.org/10.1103/b13r-825q

Abstract

We propose a general and practical strategy for designing membrane van der Waals (vdW) metasurfaces composed of two distinct hole arrays and supporting a pair of high-order multipole modes at the pump wavelength and spontaneous parametric down-conversion wavelength at once. The resonance excitation of nonradiating components of electric octupole at the pump wavelength allows one to directly concentrate near-field energy within the nonlinear 3R-MoS2 metasurface. Tuning of the second membrane metasurface resonance for concentration of near field around the holes entails the enhancement of vacuum fluctuations and spontaneous emission of photons from them. This dual-resonance architecture initiates the formation of nonclassical correlations and violation of the Cauchy-Schwarz inequality on reduced times relative to both an unpatterned flake and an off-resonant membrane configuration. The presented approach predicts a biphoton generation rate of 61 Hz/mW and a frequency bandwidth of 11.5 THz, while retaining the transferability and materials flexibility of the vdW membrane platform and offering a scalable pathway toward faster quantum encryption and computing technologies.

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Phys. Rev. Research 8, L022061– Published 29 June, 2026
  • Received 17 February 2026
  • Accepted 10 June 2026
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