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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 11 — Jun. 1, 2007
  • pp: 1587–1589

Quantification of a three-dimensional velocity vector using spectral-domain Doppler optical coherence tomography

Yeh-Chan Ahn, Woonggyu Jung, and Zhongping Chen  »View Author Affiliations

Optics Letters, Vol. 32, Issue 11, pp. 1587-1589 (2007)

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Multiangle, fiber-based, spectral-domain Doppler optical coherence tomography with a phase-resolved algorithm is presented to measure three components of an arbitrary velocity vector. A beam divider that divides a probe beam to have five independent viewpoints and path length delays was designed. The divider was inserted into the sampling arm of a Doppler optical coherence tomography system between the collimator and the first galvo mirror of a two-axis galvo scanner. The divider produced five independent Δ k ’s (the average difference between the wave vectors of incoming and outgoing beams) after passing through the focusing lens while keeping two-axis scanning capability. After calibration, an unknown velocity vector field inside a microtube was quantified by solving a three-dimensional minimization problem.

© 2007 Optical Society of America

OCIS Codes
(170.3890) Medical optics and biotechnology : Medical optics instrumentation
(170.4500) Medical optics and biotechnology : Optical coherence tomography

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: February 23, 2007
Manuscript Accepted: March 26, 2007
Published: May 18, 2007

Virtual Issues
Vol. 2, Iss. 7 Virtual Journal for Biomedical Optics

Yeh-Chan Ahn, Woonggyu Jung, and Zhongping Chen, "Quantification of a three-dimensional velocity vector using spectral-domain Doppler optical coherence tomography," Opt. Lett. 32, 1587-1589 (2007)

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