期刊
OPTICS LETTERS
卷 32, 期 11, 页码 1587-1589出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.32.001587
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- NCRR NIH HHS [RR-01192] Funding Source: Medline
- NIBIB NIH HHS [EB-00293] Funding Source: Medline
- PHS HHS [NCI-91717] Funding Source: Medline
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 Ak'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. (C) 2007 Optical Society of America
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