Investigations of phase changes in semitransparent media using low coherence speckle interferometry (LCSI)

Kay Gastinger; Klaus D. Hinsch; Svein Winther

doi:10.1117/12.695300

15 September 2006 Investigations of phase changes in semitransparent media using low coherence speckle interferometry (LCSI)

Kay Gastinger, Klaus D. Hinsch, Svein Winther

Author Affiliations +

Proceedings Volume 6341, Speckle06: Speckles, From Grains to Flowers; 63410S (2006) https://doi.org/10.1117/12.695300
Event: Speckle06: Speckles, From Grains to Flowers, 2006, Nimes, France

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.

Citation Download Citation

Kay Gastinger, Klaus D. Hinsch, and Svein Winther "Investigations of phase changes in semitransparent media using low coherence speckle interferometry (LCSI)", Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63410S (15 September 2006); https://doi.org/10.1117/12.695300

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