Heralded single-pixel imaging with high loss-resistance and noise-robustness

TL;DR

This paper introduces a heralded single-pixel imaging technique that significantly enhances noise robustness and loss tolerance by leveraging strong temporal correlations in photon pairs, outperforming classical imaging methods.

Contribution

The work presents a novel imaging method using heralded photon pairs with high resilience to noise and losses, enabling scalable correlated imaging.

Findings

Noise suppression up to 1000 times larger than the signal

Correlation-induced SNR enhancement factor over 200

90% signal loss tolerance compared to classical imaging

Abstract

Imaging with non-classically correlated photon-pairs takes advantages over classical limits in terms of sensitivity and signal-to-noise ratio. However, it is still a challenge to achieve a strong resilience to background noise and losses for practical applications. In this work, we present heralded single-pixel imaging that is remarkably robust against bright background noise and severe signal losses. Using a strong temporal correlation between a photon-pair and joint measurement-based imaging method, we achieve the suppression of noise up to 1000 times larger than the signal and also demonstrate the correlation-induced SNR enhancement factor of over 200 against 70 times larger noise and a 90% signal loss compared to non-time-gated classical imaging. Our work enables correlated imaging with a highly scalable photon capacity.