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Proceedings Paper

Flow velocity measurements by frequency domain short coherence interferometry
Author(s): Rainer Leitgeb; Leopold F. Schmetterer; Maciej Wojtkowski; Christoph K. Hitzenberger; Markus Sticker; Adolf Friedrich Fercher
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Paper Abstract

A method to measure the longitudinal flow velocity component based on phase resolved frequency domain optical coherence tomography (FDOCT) is introduced. At a center wavelength of 800nm the accessible velocity components ranges from 2 micrometers /s up to 2 mm/s. The upper limit is set by half the maximum frame rate of the CCD detector array. The lower limit is determined by the minimum resolvable phase change in the system, which is set by the system phase noise of 1 deg. First tests of the method include the velocity measurement of a mirror mounted on an oscillating piezo translator, and the flow of 8 micrometers latex spheres dispersed in water through a glass capillary.

Paper Details

Date Published: 14 June 2002
PDF: 6 pages
Proc. SPIE 4619, Coherence Domain Optical Methods in Biomedical Science and Clinical Applications VI, (14 June 2002); doi: 10.1117/12.470477
Show Author Affiliations
Rainer Leitgeb, Univ. Wien (Austria)
Leopold F. Schmetterer, Univ. Wien (Austria)
Maciej Wojtkowski, Nicolas Copernicus Univ. (Poland)
Christoph K. Hitzenberger, Univ. Wien (Austria)
Markus Sticker, Univ. Wien (Austria)
Adolf Friedrich Fercher, Univ. Wien (Austria)

Published in SPIE Proceedings Vol. 4619:
Coherence Domain Optical Methods in Biomedical Science and Clinical Applications VI
Valery V. Tuchin; Joseph A. Izatt; James G. Fujimoto, Editor(s)

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