06944551 is referenced by 6 patents and cites 5 patents.

The Doppler bandwidth extracted from the standard deviation of the frequency shift in phase-resolved optical Doppler tomography (ODT) is used to image the velocity component transverse to the probing beam. The effective numerical aperture (NA) of the optical objective determines the slope of the dependence of the standard deviation on velocity. In the case where the angle between the probing beam and flow direction is within ±15 degrees to the perpendicular, the Doppler frequency shift is very sensitive to angle position while the Doppler bandwidth is insensitive to flow direction. Linear dependence of the flow velocity on the Doppler bandwidth allows accurate measurement of flow velocity without precise determination of flow direction. In addition, it also extends the dynamic range of the average frequency shift mapping method used in the phase-resolved ODT.

Title
Imaging transverse flow velocity using spectral bandwidth of the doppler frequency shift in phase-resolved optical doppler tomography
Application Number
10/387668
Publication Number
6944551 (B2)
Application Date
March 12, 2003
Publication Date
September 13, 2005
Inventor
J Stuart Nelson
Laguna Niguel
CA, US
Hongwu Ren
Pasadena
CA, US
Zhongping Chen
Irvine
CA, US
Agent
Myers Dawes Andras & Sherman
Daniel L Dawes
Assignee
The Regents of the University of California
CA, US
IPC
G01F 007/00
G01F 001/00
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