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Proceedings Paper

Generation of high-resolution dynamic wavefronts for speckle-based measurements of complex surface shapes
Author(s): Laura M. Aulbach; Alexander W. Koch
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Paper Abstract

Due to the modulo-2π periodicity of the interferometric principle and diffraction occurring at steep surface height variations, the electronic speckle-pattern interferometry (ESPI) is restricted generally to continuous surfaces with minor structural density. With a dynamic reference wavefront adapted to the measurement object, the resolution of steep or filigree areas is feasible. The problems of the generation of high-resolution dynamic wavefronts (HRDWs) will be discussed, and a new method for the realization is presented. This paper shows first simulation results for the generation of HRDWs and their possible applications in ESPI.

Paper Details

Date Published: 24 August 2015
PDF: 8 pages
Proc. SPIE 9660, SPECKLE 2015: VI International Conference on Speckle Metrology, 96600Y (24 August 2015); doi: 10.1117/12.2189471
Show Author Affiliations
Laura M. Aulbach, Technische Univ. München (Germany)
Alexander W. Koch, Technische Univ. München (Germany)

Published in SPIE Proceedings Vol. 9660:
SPECKLE 2015: VI International Conference on Speckle Metrology
Fernando Mendoza Santoyo; Eugenio R. Mendez, Editor(s)

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