2025/05/19 by Preetisha Goswami, Goswami, Preetisha, Marta Gilaberte Basset +7
Engineering · Medicine · Physics and Astronomy · #FOS: Physical sciences #Nonlinear Optical Materials Studies #Ocular and Laser Science Research #Optics (physics.optics) #Quantum Physics (quant-ph) #Random lasers and scattering media
paper · pdf · doi:10.48550/arxiv.2505.13721
openalex publication_date 2025/05/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a frequency-correlated non-degenerate photon-pair source consisting of a second-order nonlinear crystal that generates ultraviolet UV-A and infrared light via spontaneous parametric down-conversion. Quantum imaging and sensing techniques like quantum imaging with undetected light and quantum ghost imaging leverage on wavelength correlations between down-converted photon pairs to decouple sensing and detection wavelengths, thereby exploiting established camera technology within the visible spectrum. Our results open up novel quantum sensing application scenarios in the ultraviolet domain, with potential implications for advancements in biomedical and non-destructive testing fields.