Photon-triplet emission in nonlinear resonant metasurface

Authors

  • Miguel Yee Bacaoco ⋅ AU School of Mathematical and Physical Sciences, University of Technology Sydney
  • Kirill Koshelev ⋅ AU Research School of Physics, Australian National University
  • Alexander S. Solntsev ⋅ AU School of Mathematical and Physical Sciences, University of Technology Sydney

Abstract

The photon-triplet emission from nonlinear dielectric metasurfaces supporting quasi-boundstates in the continuum (qBIC) is investigated. The approach utilizes the quantum-classical correspondence between third-order spontaneous parametric downconversion and its reverse classical process, three-wave sum-frequency generation (TSFG), to efficiently predict the photon-triplet generation (PTG) rate. Numerical simulations of non-collinear TSFG with degenerate input waves at qBIC wavelengths reveal a tunable emission profile with spatio-angular correlations. These results demonstrate the practicality of using quantum-classical correspondence to study PTG in arbitrary χ3 structures and also underscore the potential of resonant nonlinear metasurfaces as compact, free-space photon-triplet sources with quantum state control.

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Issue

Entangled!
25-28 June 2025, National Institute of Physics, University of the Philippines Diliman

Please visit the SPP2025 activity webpage for more information on this year's Physics Congress.

Article ID

SPP-2025-2C-03

Section

Optics and Photonics

Published

2025-06-17

How to Cite

[1]
MY Bacaoco, K Koshelev, and AS Solntsev, Photon-triplet emission in nonlinear resonant metasurface, Proceedings of the Samahang Pisika ng Pilipinas 43, SPP-2025-2C-03 (2025). URL: https://proceedings.spp-online.org/article/view/SPP-2025-2C-03.