Presentation
4 October 2023 Enhancing quantum imaging with undetected photons: balance, seeding, and high-gain
Author Affiliations +
Abstract
Infrared (IR) imaging is important in many disciplines but is limited by inefficient, noisy and expensive cameras. Nonlinear interferometers (NLI) enable imaging with undetected photons, where correlated visible-IR photon pairs convey information about an object illuminated in the IR but detected by a visible camera. We introduce compact PPLN based Michelson-style NLI sand discuss their operation in the context of a comprehensive model, exploring the influence of internal losses, IR seeding, and parametric gain on interferometer contrast and visibility. We show that NLI performance can be enhanced for samples with low transmission even in the presence of significant experimental losses.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rupert F. Oulton, Emma Pearce, Jefferson Florez, Nathan Gemmel, Mariame Karzazi, Yue Ma, Gabrielle Bressanini, Ronan Battle, Robert Murray, Myungshik Kim, Chris Phillips, and Alex Clark "Enhancing quantum imaging with undetected photons: balance, seeding, and high-gain", Proc. SPIE PC12692, Quantum Communications and Quantum Imaging XXI, PC1269209 (4 October 2023); https://doi.org/10.1117/12.2677574
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KEYWORDS
Photons

Infrared imaging

Quantum imaging

Quantum enhancement

Quantum interferometry

Signal to noise ratio

Spectroscopy

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