Noise-tolerant correlated coincidence imaging based on supercorrelated light at 1550 nm.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 41894489.
- Also identified by DOI 10.1126/sciadv.aeb3192 and PMC identifier 13025021.
- Licence recorded as CC BY-NC.
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Abstract
Single photon-level imaging at 1550 nanometers is a key driver for crucial advancements in the next-generation laser detection technology. This cutting-edge approach plays a vital role in space ranging, target recognition, and three-dimensional remote sensing. However, it has faced severe challenges such as insufficient noise-tolerant performance. Here, we introduced noise-tolerant correlated coincidence imaging (CCI) based on supercorrelated light (SCL). The light source, generated through nonlinear interaction between a pulsed laser and a photonic crystal fiber, exhibits a broader power-law photon number probability distribution and extremely strong photon correlation [with second-order correlation function <i>g</i><sup>(2)</sup>(0) up to 18,166]. Our noise-tolerant CCI can resist random environmental noise up to 100,000 times stronger than the echo signal photons. SCL offers an exceptionally strong noise tolerance for single photon-level imaging in extreme environments with intense noise, paving the way for the future development of extremely sensitive light detection.