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Proceedings Paper

Investigations of phase changes in semitransparent media using low coherence speckle interferometry (LCSI)
Author(s): Kay Gastinger; Klaus D. Hinsch; Svein Winther
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Paper Abstract

In this paper the basic principles of LCSI are briefly described. Furthermore, we investigate the interference signal coming from a semitransparent, multilayer object theoretically and experimentally. The interference signal is modelled using a one-dimensional transmission line approach. The theory for this model is well known from the exact matrix theory of multilayered systems. We have extended the model for phase investigations and simulated the effect of a delamination when measuring through a semitransparent layer. The model is verified by experimental results from LCSI measurements.

Paper Details

Date Published: 15 September 2006
PDF: 6 pages
Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63410S (15 September 2006); doi: 10.1117/12.695300
Show Author Affiliations
Kay Gastinger, SINTEF ICT (Norway)
Klaus D. Hinsch, Carl-von-Ossietzky Univ. (Germany)
Svein Winther, Unifob Science (Norway)

Published in SPIE Proceedings Vol. 6341:
Speckle06: Speckles, From Grains to Flowers
Pierre Slangen; Christine Cerruti, Editor(s)

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