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Proceedings Paper

3D digital holographic interferometry as a tool to measure the tympanic membrane motion
Author(s): M. del Socorro Hernández-Montes; S. Muñoz Solis; F. Mendoza Santoyo
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Paper Abstract

Most of the current optical non-invasive methodologies used to characterize the tympanic membrane (TM) motion generate data in the z direction only, i.e., employ an out-of-plane sensitive configuration. In this paper, 3-D digital holographic interferometry (3-D DHI), is used to measure micrometer displacements from the TM surface. The proposed optical configuration provides information from three sensitivity vectors that separate the contributions from x, y and z displacement components. In order to achieve high accuracy of the sensitivity vector and to obtain the complete determination of the 3-D TM displacements, its surface contour is obtained by moving only two object illumination sources chosen from any pair within the DHI optical setup. Results are presented from measurements corresponding to individual displacements maps for the three orthogonal displacements components x, y and z combined with the TM shape from an ex-vivo cat. These results will no doubt contribute to enhance the understanding and determinate the mechanical properties of this complex tissue.

Paper Details

Date Published: 11 September 2012
PDF: 6 pages
Proc. SPIE 8413, Speckle 2012: V International Conference on Speckle Metrology, 84131A (11 September 2012); doi: 10.1117/12.978227
Show Author Affiliations
M. del Socorro Hernández-Montes, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
S. Muñoz Solis, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
F. Mendoza Santoyo, Ctr. de Investigaciones en Óptica, A.C. (Mexico)

Published in SPIE Proceedings Vol. 8413:
Speckle 2012: V International Conference on Speckle Metrology
Ángel Fernandez Doval; Cristina Trillo, Editor(s)

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