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Resolution limit in opto-digital systems revisited

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Resolution limit in opto-digital systems revisited

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dc.contributor.author	Galdon, Laura
dc.contributor.author	García Sucerquia, Jorge Iván
dc.contributor.author	Saavedra Tortosa, Genaro
dc.contributor.author	Martínez Corral, Manuel
dc.contributor.author	Sánchez Ortiga, Emilio
dc.date.accessioned	2023-01-09T15:46:05Z
dc.date.available	2023-01-09T15:46:05Z
dc.date.issued	2023
dc.identifier.citation	Galdon, Laura García Sucerquia, Jorge Iván Saavedra Tortosa, Genaro Martínez Corral, Manuel Sánchez Ortiga, Emilio 2023 Resolution limit in opto-digital systems revisited Optics Express 31 2 2000 2012
dc.identifier.uri	https://hdl.handle.net/10550/84920
dc.description.abstract	The resolution limit achievable with an optical system is a fundamental piece of information when characterizing its performance, mainly in case of microscopy imaging. Usually this information is given in the form of a distance, often expressed in microns, or in the form of a cutoff spatial frequency, often expressed in line pairs per mm. In modern imaging systems, where the final image is collected by pixelated digital cameras, the resolution limit is determined by the performance of both, the optical systems and the digital sensor. Usually, one of these factors is considered to be prevalent over the other for estimating the spatial resolution, leading to the global performance of the imaging system ruled by either the classical Abbe resolution limit, based on physical diffraction, or by the Nyquist resolution limit, based on the digital sensor features. This estimation fails significantly to predict the global performance of opto-digital imaging systems, like 3D microscopes, where none of the factors is negligible. In that case, which indeed is the most common, neither the Abbe formula nor the Nyquist formula provide by themselves a reliable prediction for the resolution limit. This is a serious drawback since systems designers often use those formulae as design input parameters. Aiming to overcome this lack, a simple mathematical expression obtained by finely articulating the Abbe and Nyquist formulas, to easily predict the spatial resolution limit of opto-digital imaging systems, is proposed here. The derived expression is tested experimentally, and shows to be valid in a broad range of opto-digital combinations.
dc.language.iso	eng
dc.relation.ispartof	Optics Express, 2023, vol. 31, num. 2, p. 2000-2012
dc.subject	Òptica
dc.subject	Microscòpia
dc.title	Resolution limit in opto-digital systems revisited
dc.type	journal article	es_ES
dc.date.updated	2023-01-09T15:46:06Z
dc.identifier.doi	10.1364/OE.479458
dc.identifier.idgrec	156238
dc.rights.accessRights	open access	es_ES