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Proceedings Paper

High-speed phenomena visualization using digital holographic microscopy
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Paper Abstract

Digital holographic microscopy is a technique which enables real time monitoring of fast phenomena by using high speed sensors of video cameras. Using this advantage, we obtain holographic images of flow in microcavities, employing a CMOS video camera sensor with acquisition rate of 10 000fps. The corresponding reconstructed 3D image for different flow conditions is obtained from a single hologram using simulations based on the Fresnel approximation. We develop an automated image processing procedure in order to obtain quantitative information about the dynamic contact angle evolution, the shape and velocity of an approximately 300μm wide portion from the water-air meniscus interface in different microscopic cavity geometries.

Paper Details

Date Published: 4 May 2012
PDF: 8 pages
Proc. SPIE 8430, Optical Micro- and Nanometrology IV, 84301F (4 May 2012); doi: 10.1117/12.922740
Show Author Affiliations
Mona Mihailescu, National Institute for Research and Development in Microtechnologies (Romania)
Polytechnical Univ. of Bucharest (Romania)
Alina Georgiana Ilie, Polytechnical Univ. of Bucharest (Romania)
Julia Costescu, Polytechnical Univ. of Bucharest (Romania)
Oana Tatiana Nedelcu, National Institute for Research and Development in Microtechnologies (Romania)

Published in SPIE Proceedings Vol. 8430:
Optical Micro- and Nanometrology IV
Christophe Gorecki; Anand K. Asundi; Wolfgang Osten, Editor(s)

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