Abstract

A nylon bar with different surface roughness is used as a simulation sample of biological tissue for the determination of optical properties by using the spatially resolved steady-state diffuse reflection technique. The results obtained indicate that surface roughness has some effects on the determination of the optical properties of the nylon bar. The determined reduced scattering coefficient decreases with the decrease of the surface roughness of the nylon bar and goes to a constant for the lower surface roughness, and the determined absorption coefficient increases with the decrease of the surface roughness of the nylon bar. Consequently, the optical properties of the tissues obtained by the spatially resolved steady-state diffuse reflection technique should be modified.

© 2007 Optical Society of America

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References

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    [CrossRef]
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    [CrossRef] [PubMed]
  6. A. Kienle and M. S. Patterson, "Improved solutions of the steady-state and the time-resolved diffusion equations for reflection from a semi-infinite turbid medium," J. Opt. Soc. Am. A 14, 246-254 (1997).
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    [CrossRef]

2003 (1)

2001 (2)

1997 (1)

1994 (1)

1992 (1)

T. J. Farrel, M. S. Patterson, and B. C. Wilson, "A diffusion theory model of spatially resolved, steady-state diffuse reflectance for the noninvasive determination of tissue optical properties in vivo," Med. Phys. 19, 879-888 (1992).
[CrossRef]

1989 (1)

R. Marchesini, A. Bertoni, S. Andreola, E. Melloni, and A. E. Sichirollo, "Extinction and absorption coefficients and scattering phase functions of human tissues in vitro," Appl. Opt. 28,2318-2324 (1989).
[CrossRef] [PubMed]

Andreola, S.

R. Marchesini, A. Bertoni, S. Andreola, E. Melloni, and A. E. Sichirollo, "Extinction and absorption coefficients and scattering phase functions of human tissues in vitro," Appl. Opt. 28,2318-2324 (1989).
[CrossRef] [PubMed]

Bertoni, A.

R. Marchesini, A. Bertoni, S. Andreola, E. Melloni, and A. E. Sichirollo, "Extinction and absorption coefficients and scattering phase functions of human tissues in vitro," Appl. Opt. 28,2318-2324 (1989).
[CrossRef] [PubMed]

Farrel, T. J.

T. J. Farrel, M. S. Patterson, and B. C. Wilson, "A diffusion theory model of spatially resolved, steady-state diffuse reflectance for the noninvasive determination of tissue optical properties in vivo," Med. Phys. 19, 879-888 (1992).
[CrossRef]

Feng, T. C.

Forster, F. K.

Ghosh, N.

Gupta, P. K.

Haskell, R. C.

Hibst, R.

Hu, X. H.

Kienle, A.

Lu, J. Q.

Ma, X. Y.

Majumder, S. K.

Marchesini, R.

R. Marchesini, A. Bertoni, S. Andreola, E. Melloni, and A. E. Sichirollo, "Extinction and absorption coefficients and scattering phase functions of human tissues in vitro," Appl. Opt. 28,2318-2324 (1989).
[CrossRef] [PubMed]

McAdams, M. S.

Melloni, E.

R. Marchesini, A. Bertoni, S. Andreola, E. Melloni, and A. E. Sichirollo, "Extinction and absorption coefficients and scattering phase functions of human tissues in vitro," Appl. Opt. 28,2318-2324 (1989).
[CrossRef] [PubMed]

Mohanty, S. K.

Patterson, M. S.

A. Kienle and M. S. Patterson, "Improved solutions of the steady-state and the time-resolved diffusion equations for reflection from a semi-infinite turbid medium," J. Opt. Soc. Am. A 14, 246-254 (1997).
[CrossRef]

T. J. Farrel, M. S. Patterson, and B. C. Wilson, "A diffusion theory model of spatially resolved, steady-state diffuse reflectance for the noninvasive determination of tissue optical properties in vivo," Med. Phys. 19, 879-888 (1992).
[CrossRef]

Sichirollo, A. E.

R. Marchesini, A. Bertoni, S. Andreola, E. Melloni, and A. E. Sichirollo, "Extinction and absorption coefficients and scattering phase functions of human tissues in vitro," Appl. Opt. 28,2318-2324 (1989).
[CrossRef] [PubMed]

Svaasand, L. O.

Tromberg, B. J.

Tsay, T. T.

Wilson, B. C.

T. J. Farrel, M. S. Patterson, and B. C. Wilson, "A diffusion theory model of spatially resolved, steady-state diffuse reflectance for the noninvasive determination of tissue optical properties in vivo," Med. Phys. 19, 879-888 (1992).
[CrossRef]

Appl. Opt. (2)

N. Ghosh, S. K. Mohanty, S. K. Majumder, and P. K. Gupta, "Measurement of optical transport properties of normal and malignant human breast tissue," Appl. Opt. 40, 176-184 (2001).
[CrossRef]

R. Marchesini, A. Bertoni, S. Andreola, E. Melloni, and A. E. Sichirollo, "Extinction and absorption coefficients and scattering phase functions of human tissues in vitro," Appl. Opt. 28,2318-2324 (1989).
[CrossRef] [PubMed]

J. Opt. Soc. Am. A (2)

Med. Phys. (1)

T. J. Farrel, M. S. Patterson, and B. C. Wilson, "A diffusion theory model of spatially resolved, steady-state diffuse reflectance for the noninvasive determination of tissue optical properties in vivo," Med. Phys. 19, 879-888 (1992).
[CrossRef]

Opt. Lett. (2)

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Figures (4)

Fig. 1
Fig. 1

Schematic of the setup for diffuse reflectance measurements.

Fig. 2
Fig. 2

Typical plot of the radical variation of diffuse reflectance with R a = 2.636   μm . The solid curve is a theoretical fit to Eq. (1).

Fig. 3
Fig. 3

The reduced scattering coefficients as a function of the surface roughness R a of the nylon bar.

Fig. 4
Fig. 4

The absorption coefficients as functions of the surface roughness R a of the nylon bar.

Equations (3)

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R ( ρ ) = 1 4 π [ z 0 ( μ e f f + 1 r 1 ) exp ( μ e f f r 1 ) r 1 2 + ( z 0 + 2 z b ) × ( μ e f f + 1 r 2 ) exp ( μ e f f r 2 ) r 2 2 ] ,
z 0 = ( μ a + μ s ) 1 ,   z b = 2 D 1 + R e f f 1 R e f f ,
r 1 2 = z 0 2 + ρ 2 ,   r 2 2 = ( z 0 + 2 z b ) 2 + ρ 2 ,

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