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Optical Engineering

Substructured Ronchi gratings from the linear combination of classical gratings
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Paper Abstract

Substructured Ronchi gratings are used to sharpen and increase the number of fringes in Ronchigrams, thereby increasing their spatial resolution and allowing greater accuracy in the evaluation of a surface under test. This work presents a simple method for generating substructured Ronchi gratings and for calculating the intensity pattern produced by this type of grating. For this, we propose the generation of this kind of grating from the linear combination of classical gratings; the pattern of irradiance produced by these Ronchi gratings will be a linear combination of the intensity patterns produced by each combined classical grating. A comparison between theoretical and experimental Ronchigrams was obtained by analyzing a parabolic mirror.

Paper Details

Date Published: 21 November 2014
PDF: 7 pages
Opt. Eng. 53(11) 114111 doi: 10.1117/1.OE.53.11.114111
Published in: Optical Engineering Volume 53, Issue 11
Show Author Affiliations
Daniel Aguirre-Aguirre, Instituto Nacional de Astrofísica, Óptica y Electrónica (México)
Brenda Villalobos-Mendoza, Instituto Nacional de Astrofísica, Óptica y Electrónica (México)
Fermin S. Granados Agustin, Instituto Nacional de Astrofísica, Óptica y Electrónica (México)
Rafael Izazaga-Pérez, Instituto Nacional de Astrofísica, Óptica y Electrónica (México)
Manuel Campos-García, Univ. Nacional Autónoma de México (México)
María-Elizabeth Percino-Zacarías, Instituto Nacional de Astrofísica, Óptica y Electrónica (México)
Alejandro Cornejo-Rodríguez, Instituto Nacional de Astrofísica, Óptica y Electrónica (México)


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