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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/3637

Title: Development of speckle shearing interferometer error analysis as an aperture function of wavefront divergence
Authors: Wan Abdullah, Wan S.
Petzing, Jon N.
Issue Date: 2005
Publisher: © Taylor & Francis
Citation: WAN ABDULLAH, W.S. and PETZING, J.N., 2005. Development of speckle shearing interferometer error analysis as an aperture function of wavefront divergence. Journal of Modern Optics, Vol. 52 (11), pp. 1495–1510 [DOI: 10.1080/09500340500052887]
Abstract: Increasing the confidence in whole-field speckle-based optical metrology transducers requires a detailed understanding of the error sources of respective instruments. The analysis of error contributions to the optical phase output of a Michelson-based speckle shearing interferometer have been modelled. Specific attention has been paid to the effect of the aperture at the image plane, with respect to collimated and non-collimated object illumination. This modelling presents an advance on a previous modelled analytical relationship, which includes partial displacement derivative terms and components as a function of illumination geometries and, importantly, aperture effects. The work has identified a phase error contribution due to the aperture function of between 0.15% and 1.48%, dependent on the object distance, when considering a planar object undergoing predominantly surface to normal deformation.
Description: This article was published in the journal, Journal of Modern Optics, and the definitive version is available at: http://www.tandf.co.uk/journals/titles/09500340.asp
URI: https://dspace.lboro.ac.uk/2134/3637
ISSN: 0950–0340
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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