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Development of speckle shearing interferometer error analysis as an aperture function of wavefront divergence
journal contribution
posted on 2008-09-18, 09:56 authored by Wan S. Wan Abdullah, Jon PetzingJon PetzingIncreasing 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.
History
School
- Mechanical, Electrical and Manufacturing Engineering
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]Publisher
© Taylor & FrancisPublication date
2005Notes
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.aspISSN
0950-0340eISSN
1362-3044Language
- en