Substructured Ronchi gratings from the linear combination of classical gratings

Daniel Aguirre-Aguirre; Brenda Villalobos-Mendoza; Fermin S. Granados Agustin; Rafael Izazaga-Pérez; Manuel Campos-García; María-Elizabeth Percino-Zacarías; Alejandro Cornejo-Rodríguez

doi:10.1117/1.OE.53.11.114111

21 November 2014 Substructured Ronchi gratings from the linear combination of classical gratings

Daniel Aguirre-Aguirre, Brenda Villalobos-Mendoza, Fermin S. Granados Agustin, Rafael Izazaga-Pérez, Manuel Campos-García, María-Elizabeth Percino-Zacarías, Alejandro Cornejo-Rodríguez

Author Affiliations +

Optical Engineering, Vol. 53, Issue 11, 114111 (November 2014). https://doi.org/10.1117/1.OE.53.11.114111

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.

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Daniel Aguirre-Aguirre, Brenda Villalobos-Mendoza, Fermin S. Granados Agustin, Rafael Izazaga-Pérez, Manuel Campos-García, María-Elizabeth Percino-Zacarías, and Alejandro Cornejo-Rodríguez "Substructured Ronchi gratings from the linear combination of classical gratings," Optical Engineering 53(11), 114111 (21 November 2014). https://doi.org/10.1117/1.OE.53.11.114111

Published: 21 November 2014

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