A simple model for entangled photon generation in resonant structures

Sorensen NJ, Sultanov V, Chekhova MV (2025)


Publication Type: Journal article

Publication year: 2025

Journal

Book Volume: 33

Pages Range: 13946-13960

Journal Issue: 6

DOI: 10.1364/OE.555205

Abstract

The ability to engineer pairs of entangled photons is essential to quantum information science, and generating these states using spontaneous parametric down-conversion (SPDC) in nano- and micrometer-scale materials offers numerous advantages. To properly engineer such sources, a reliable model describing nano- and micrometer-scale SPDC is necessary; however, such a theoretical description remains a challenge. Here, we propose and derive a simplified model to describe SPDC in resonant structures, which considers the generation of photon pairs and the resonant enhancement of spectral bands to be separate processes, even though they actually occur simultaneously. We compare our simplified model to both the rigorous theory of SPDC in an etalon – a simple example of a resonant structure – and our experiments on SPDC in etalons and find agreement for low-gain SPDC. By simplifying the calculations required to generate photon pairs, our model promises to make designing complex resonant structures easier, and it promises to hasten the iteration of designs across the field of quantum state engineering.

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How to cite

APA:

Sorensen, N.J., Sultanov, V., & Chekhova, M.V. (2025). A simple model for entangled photon generation in resonant structures. Optics Express, 33(6), 13946-13960. https://doi.org/10.1364/OE.555205

MLA:

Sorensen, Nicholas J., Vitaliy Sultanov, and Maria V. Chekhova. "A simple model for entangled photon generation in resonant structures." Optics Express 33.6 (2025): 13946-13960.

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