2026-04-14T02:57:18Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/1246792025-11-19T11:00:29Zcom_2072_1057col_2072_478821col_2072_478917
RECERCAT
author
Pérez Aviñoa, Marcos
author
Martínez-Herrero, Rosario
author
Vallmitjana i Rico, Santiago
author
Latorre-Carmona, Pedro
author
Juvells Prades, Ignacio
author
Carnicer González, Arturo
2018-09-19T12:11:04Z2020-09-13T05:10:21Z2018-09-132018-09-19T12:11:04Z
In this work we develop a partially-coherent spirally-polarized imaging system for generating gradual edge detection images. A rotating diffuser is used for producing illumination sources with tunable degree of coherence. Using a 4f configuration, the frequency content of the image is modified by means of a vortex half-wave retarder as a spatial filter. Accordingly, we analytically describe a spirally-polarized imaging system illuminated with a Gauss-Schell source using paraxial coherence-polarization theory. Numerical simulations and experimental results demonstrate the validity of our approach. We use a referenceless spatial content descriptor to assess the quality of the recorded images as a function of the coherence state of the source.
cc-by-nc-nd (c) Elsevier, 2018 http://creativecommons.org/licenses/by-nc-nd/3.0/es info:eu-repo/semantics/openAccess
Òptica de Fourier
Coherència (Òptica)
Polarització (Llum)
Fourier optics
Coherence (Optics)
Polarization (Light)
Partially-coherent spirally-polarized gradual-edge imaging
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion