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Published December 22, 1997 | Published
Journal Article Open

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


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.

Additional Information

© 1997 Optical Society of America. Received October 8, 1997; Revised December 7, 1997. Special thanks to Q. Shen, T. Bendele, and N. Thukral for their contributions to this project. The project was sponsored in part by The Whitaker Foundation grant and the National Institutes of Health grants R29 CA68562 and R01 CA71980.

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