Flow velocity measurements by frequency domain short coherence interferometry

Rainer Leitgeb*, Leopold Schmetterer, Maciej Wojtkowski, Christoph K. Hitzenberger, Markus Sticker, Adolf F. Fercher

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

49 Citations (Scopus)

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 μm/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 μm latex spheres dispersed in water through a glass capillary.

Original languageEnglish
Pages (from-to)16-21
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4619
DOIs
Publication statusPublished - 2002
Externally publishedYes
EventCoherence Domain Optical Methods in Biomedical Science and Clinical Applications VI - San Jose, CA, United States
Duration: Jan 21 2002Jan 23 2002

ASJC Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • Laser Doppler Velocimetry
  • Optical Coherence Tomography
  • Partial Coherence Interferometry

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