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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 1, Iss. 13 — Dec. 22, 1997
  • pp: 454–460

White light oblique incidence reflectometer for measuring absorption and reduced scattering spectra of tissue-like turbid media

Guillermo Marquez and Lihong V. Wang  »View Author Affiliations


Optics Express, Vol. 1, Issue 13, pp. 454-460 (1997)
http://dx.doi.org/10.1364/OE.1.000454


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Abstract

We designed a quick and inexpensive system for spectral measurements of optical properties including absorption coefficient and reduced scattering coefficient. The system was based on oblique incidence reflectometry.[1] A broad band light source was coupled into an optic fiber to deliver light obliquely to turbid media. Nine detection optic fibers were used to collect the diffuse reflectance as a function of source-detector distance. The relative diffuse reflectance profile was used to deduce the absorption and reduced scattering spectra. The system was able to acquire data in a wavelength range of 256 nm within a fraction of a second.

© Optical Society of America

OCIS Codes
(290.5820) Scattering : Scattering measurements
(300.6170) Spectroscopy : Spectra

ToC Category:
Focus Issue: Biomedical optics

History
Original Manuscript: October 9, 1997
Revised Manuscript: October 8, 1997
Published: December 22, 1997

Citation
Guillermo Marquez and Lihong Wang, "White light oblique incidence reflectometer formeasuring absorption and reduced scatteringspectra of tissue-like turbid media," Opt. Express 1, 454-460 (1997)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-1-13-454


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References

  1. L.-H. Wang and S. L. Jacques, "Use of a laser beam with an oblique angle of incidence to measure the reduced scattering coefficient of a turbid medium," Appl. Opt. 34, 2362-2366 (1995). [CrossRef] [PubMed]
  2. S. L. Jacques, eds., Laser-Tissue Interaction VIII, Proc. SPIE 2975 (SPIE Press, Bellingham, WA, 1997).
  3. E. Sevick-Muraca and D. Benaron, eds., OSA Trends in Optics and Photonics on Biomedical Optical Spectroscopy and Diagnostics, vol. 3 (Optical Society of America, Washington, DC, 1996).
  4. B. Chance and R. R. Alfano, eds., Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II, Proc. SPIE 2979 (SPIE Press, Bellingham, WA, 1997).
  5. S.-P. Lin, L.-H. Wang, S. L. Jacques and F. K. Tittel, "Measurement of tissue optical properties by the use of oblique-incidence optical fiber reflectometry," Appl. Opt. 36, 136-143 (1997). [CrossRef] [PubMed]
  6. S.-P. Lin, L.-H. Wang, S. L. Jacques, and F. K. Tittel, "Measurement of absorption and scattering spectra with oblique incidence reflectometry," in OSA Trends in Optics and Photonics on Biomedical Optical Spectroscopy and Diagnostics, E. Sevick-Muraca and D. Benaron, eds., vol. 3, 44-49 (Optical Society of America, Washington, D.C., 1996).
  7. G. Marquez, L.-H. Wang, S.-P. Lin, J. A. Schwartz, and S. L. Thomsen, "Anisotropy in the absorption and scattering spectra of chicken breast tissue," Appl. Opt., in press (1997).
  8. L.-H. Wang and S. L. Jacques, "Analysis of diffusion theory and similarity relations," Proc. SPIE 1888, 107-116 (1993). [CrossRef]
  9. T. J. Farrell, M. S. Patterson, and B. C. Wilson, "A diffusion theory model of spatially resolved, steady-state diffuse reflectance for the non-invasive determination of tissue optical properties in vivo," Med. Phys. 19, 879-888 (1992). [CrossRef] [PubMed]
  10. W. H. Press, B. P. Flannery, S. A. Teukolsky, and W. T. Veterlin, Numerical Recipes in C, 2nd ed. (Cambridge U. Press, Cambridge, UK, 1992), Section 15.5.

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