Journal ArticleDOI
Measurement of coating thickness with a multiple-beam grating interferometer
J. Pedraza-Contreras,Octavio Cardona-Nunez,Alejandro Cornejo-Rodriguez,Alberto Cordero-Dávila,Robert H. Noble +4 more
TLDR
La source est un laser He−Ne et le reseau a 1200 sillons/mm et un angle de blaze de Littrow de 26°45'Abstract:
La source est un laser He−Ne et le reseau a 1200 sillons/mm et un angle de blaze de Littrow de 26°45'read more
Citations
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Journal ArticleDOI
Multiple-beam grating interferometry: a comparison of techniques applied to the measurement of coating thickness
Brian Bates,Yingcai Li +1 more
TL;DR: Les franges sont produites a l'interieur d'une cavite resonnante (etalon) comprenant un reseau de diffraction and un echantillon test reflechissant partiellement.
Proceedings ArticleDOI
I-WMOSS: Interferometric wavelength multiplexed optical scanning sensor
Nabeel A. Riza,M. J. Amin +1 more
TL;DR: In this article, an electronically agile optical scanning sensor based on wavelength multiplexed optical interferometry is proposed, which uses wavelength tuning to enable an optical scanning beam and a wavelength dispersive element like a grating to act as a beam splitter and beam combiner.
References
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Journal ArticleDOI
Oblique incidence interferometry applied to non-optical surfaces
TL;DR: In this article, the use of diffraction gratings as beamsplitters in an oblique incidence interferometer and the application of that interferometers to measuring the flatness of non-optical surfaces was demonstrated.
Journal ArticleDOI
Interferometer based on four diffraction gratings
F J Weinberg,N B Wood +1 more
TL;DR: An interferometer based on diffraction gratings, used over their whole area, and designed to overcome some of the disadvantages of the four-mirror Mach-Zehnder arrangement is described in this paper.
Journal ArticleDOI
Improved Oblique- Incidence Interferometer
TL;DR: In this paper, an oblique-incidence interferometer for testing the flatness of fine-ground surfaces is described, which uses reflecting diffraction gratings to divide and recombine the beams, resulting in a very compact optical system.
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