Abstract

We present an autocorrelation method to quantitatively map transverse particle-flow velocity with a Fourier-domain optical coherence tomography system. This method is derived from the intensity fluctuation of the backscattered light modulated by flowing particles. When passing through the probe beam, moving particles encode a transit time into the backscattered light. The slope of the normalized autocorrelation function of the backscattered light is proportional to the transverse velocity. The proposed method is experimentally verified using an intralipid scattering flow phantom.

© 2010 Optical Society of America

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References

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2009 (4)

2003 (1)

2002 (1)

2000 (2)

1999 (1)

Z. P. Chen, Y. H. Zhao, S. M. Srinivas, J. S. Nelson, N. Prakash, and R. D. Frostig, IEEE J. Sel. Top. Quantum Electron. 5, 1134 (1999).
[CrossRef]

1980 (1)

H. Asai, Jpn. J. Appl. Phys. 19, 2279 (1980).
[CrossRef]

1938 (1)

G. I. Taylor, Proc. Royal Soc. London A 164, 476 (1938).
[CrossRef]

An, L.

Asai, H.

H. Asai, Jpn. J. Appl. Phys. 19, 2279 (1980).
[CrossRef]

Brecke, K. M.

Chen, Z. H.

Chen, Z. P.

de Boer, J. F.

Ding, Z. H.

Fawzi, A.

Flamer, J. G.

Frostig, R. D.

Z. P. Chen, Y. H. Zhao, S. M. Srinivas, J. S. Nelson, N. Prakash, and R. D. Frostig, IEEE J. Sel. Top. Quantum Electron. 5, 1134 (1999).
[CrossRef]

Grulkowski, I.

He, Y. H.

Huang, D.

Izatt, J. A.

Kennedy, K. M.

Kowalczyk, A.

Nelson, J. S.

Prakash, N.

Z. P. Chen, Y. H. Zhao, S. M. Srinivas, J. S. Nelson, N. Prakash, and R. D. Frostig, IEEE J. Sel. Top. Quantum Electron. 5, 1134 (1999).
[CrossRef]

Proskurin, S. G.

Ren, H. W.

Saxer, C.

Shen, Q. M.

Srinivas, S. M.

Z. P. Chen, Y. H. Zhao, S. M. Srinivas, J. S. Nelson, N. Prakash, and R. D. Frostig, IEEE J. Sel. Top. Quantum Electron. 5, 1134 (1999).
[CrossRef]

Szkulmowska, A.

Szkulmowski, M.

Szlag, D.

Tan, O.

Tao, Y. K.

Taylor, G. I.

G. I. Taylor, Proc. Royal Soc. London A 164, 476 (1938).
[CrossRef]

Wang, R. K.

Wang, Y. M.

Wojtkowski, M.

Xiang, S. H.

Zhao, Y. H.

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Figures (3)

Fig. 1
Fig. 1

Magnitudes of the detected light modulated by flowing intralipid scattering particles with a transverse velocity of (a) 3.20 mm / s , (b) 1.18 mm / s , (c) 0.64 mm / s , and (d) the normalized autocorrelation functions.

Fig. 2
Fig. 2

Measured transverse velocities (line with solid circles) and calibrated velocities (line with open circles).

Fig. 3
Fig. 3

Dots denote the profiles of the transverse velocities along a depth-scan passing through the center of the plastic tube, and solid curves are the parabolic fits of the measured results, with the maximum transverse velocities controlled by the syringe pump at (a) 3.2 mm / s and (b) 2.55 mm / s , respectively.

Equations (3)

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I ( z , t ) = A ( z , t ) cos ( 2 k n z φ 1 ( z , t ) φ 2 ( z ) ) ,
A ( z , t ) = i = 1 N M i ( t i , z , τ 0 ) REC ( t i , z , τ 0 ) , i = 1 , 2 , 3 · · · N , REC ( t i , z , τ 0 ) = { 1 , t i t ( t i + τ 0 ) 0 , otherwise ,
R ( z , τ ) R ( z , 0 ) = { 1 τ τ 0 , τ τ 0 0 , τ > τ 0 ,

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