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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 3 — Feb. 1, 2014
  • pp: 521–524

Resolving directional ambiguity in dynamic light scattering-based transverse motion velocimetry in optical coherence tomography

Brendan K. Huang and Michael A. Choma  »View Author Affiliations

Optics Letters, Vol. 39, Issue 3, pp. 521-524 (2014)

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Dynamic light scattering-based optical coherence tomography approaches have been successfully implemented to measure total transverse (xy) flow speed, but are unable to resolve directionality. We propose a method to extract directional velocity in the transverse plane by introducing a variable scan bias to our system. Our velocity estimation, which yields the directional velocity component along the scan axis, is also independent of any point-spread function calibration. By combining our approach with Doppler velocimetry, we show three-component velocimetry that is appropriately dependent on latitudinal and longitudinal angle.

© 2014 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(110.4500) Imaging systems : Optical coherence tomography
(290.5820) Scattering : Scattering measurements

ToC Category:
Coherence and Statistical Optics

Original Manuscript: November 5, 2013
Manuscript Accepted: December 4, 2013
Published: January 23, 2014

Virtual Issues
Vol. 9, Iss. 4 Virtual Journal for Biomedical Optics

Brendan K. Huang and Michael A. Choma, "Resolving directional ambiguity in dynamic light scattering-based transverse motion velocimetry in optical coherence tomography," Opt. Lett. 39, 521-524 (2014)

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