<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Billet, C.</style></author><author><style face="normal" font="default" size="100%">Sablong, R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Differential optical spectroscopy for absorption characterization of mono / two-layered scattering media</style></title><secondary-title><style face="normal" font="default" size="100%">Conf Proc IEEE Eng Med Biol Soc</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">categ_st2i</style></keyword><keyword><style  face="normal" font="default" size="100%">comm_orale</style></keyword><keyword><style  face="normal" font="default" size="100%">imagerie_RMN_optique</style></keyword><keyword><style  face="normal" font="default" size="100%">Méthodes et systèmes en IRM et optique</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><volume><style face="normal" font="default" size="100%">1</style></volume><pages><style face="normal" font="default" size="100%">2622-2625</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Diffuse reflectance techniques are commonly used to characterize the optical properties of various biological tissues in the visible and NIR spectral ranges. Nevertheless a sharp determination of local chromophores concentration in turbid media is usually difficult to obtain because of the nonlinear dependence of the reflected light intensity as a function of scattering and absorption coefficients. The proposed technique of this paper allows to determine absorbent compounds concentration ratios in a turbid medium from three reflectance spectra, measured for source-detector distances inferior to 1 cm. This method is validated in the visible range in case of typical biological absorption and reduced scattering coefficients. Two-layered scattering media are also investigated</style></abstract></record></records></xml>