Generalization of the Ronchi, sinusoidal, and triangular rulings for Gaussian-laser-beam-diameter measurements

Transmittance (or reflectance) characteristics of generalized gratings are described for Gaussian-laserbeam-diameter measurements. The generalized gratings provide for accurate measurement of both small and large Gaussian beam diameters and are superior to the Ronchi, the triangular, and the sinusoi...

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Bibliographic Details
Published in:Applied optics (2004) 1993-05, Vol.32 (13), p.2235-2242
Main Authors: Cherri, A K, Awwal, A A, Karim, M A
Format: Article
Language:English
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Summary:Transmittance (or reflectance) characteristics of generalized gratings are described for Gaussian-laserbeam-diameter measurements. The generalized gratings provide for accurate measurement of both small and large Gaussian beam diameters and are superior to the Ronchi, the triangular, and the sinusoidal rulings. Also the proposed generalized gratings account for all width variations of the opaque, transparent, and transitional regions within a selected ruling.
ISSN:1559-128X
DOI:10.1364/AO.32.002235