Speckled-speckle field as a resource for imaging techniques.

Autor: Cassina S; Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100, Como, Italy., Cenedese G; Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100, Como, Italy.; INFN-Section of Milan, Via Celoria 16, 20133, Milan, Italy., Allevi A; Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100, Como, Italy. alessia.allevi@uninsubria.it.; Institute for Photonics and Nanotechnologies, IFN-CNR, Via Valleggio 11, 22100, Como, Italy. alessia.allevi@uninsubria.it., Bondani M; Institute for Photonics and Nanotechnologies, IFN-CNR, Via Valleggio 11, 22100, Como, Italy.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Jul 02; Vol. 14 (1), pp. 15161. Date of Electronic Publication: 2024 Jul 02.
DOI: 10.1038/s41598-024-64969-7
Abstrakt: Correlated states of light, both classical and quantum, can find useful applications in the implementation of several imaging techniques. Among the employed sources, pseudo-thermal states, generated by the passage of a laser beam through a diffuser, represent the standard choice. To produce light with a higher level of correlation, in this work we consider and characterize the speckled-speckle field obtained with two diffusers using both a numerical simulation and an experimental implementation. In order to discuss the potential usefulness of super-thermal light in imaging protocols, we analyze the behavior of some figures of merit, namely the contrast, the signal-to-noise ratio and the image resolution. The obtained results clarify the possible advantages offered by this kind of light, and at the same time better emphasize the reasons why it does not outperform pseudo-thermal light.
(© 2024. The Author(s).)
Databáze: MEDLINE
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