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|Title: ||Development of speckle shearing interferometer error analysis as an aperture function of wavefront divergence|
|Authors: ||Wan Abdullah, W.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|
|Appears in Collections:||Published Articles (Mechanical and Manufacturing Engineering)|
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