Bevilacqua, FredericDepeursinge, Christian2017-06-132017-06-132017-06-132005https://infoscience.epfl.ch/handle/20.500.14299/138392We present a method and apparatus for local and superficial measurement of the optical properties of turbid media. The depth probed is on the order of 1 transport mean free path of the photon. The absorption coefficient, reduced scattering coefficient and the phase function parameter gamma =(1-g2)/(1-g1) are optical parameters computed from a single measurement of the spatially resolved reflectance close to the source. Images of superficial structures of the medium can be obtained by performing multi-site measurements. An important application of this technique is the characterization of biological tissues, for example for medical diagnostic purposes. Measurements on biological tissues can be achieved using a probe of diameter less than 2mm, and the average volume probed is on the order of 1 mm<3>. Separate images of absorption and tissue structure can be achieved with a resolution of approximately one transport mean free path of the considered tissue.patentDE69929224ES2257074DE69929224AT314638EP1119763US6850656EP1119763WO00208432229583534082565