@misc{ReichLoehmannsroebenSchael2003, author = {Reich, Oliver and L{\"o}hmannsr{\"o}ben, Hans-Gerd and Schael, Frank}, title = {Optical sensing with photon density waves: investigation of model media}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13147}, year = {2003}, abstract = {Investigations with frequency domain photon density waves allow elucidation of absorption and scattering properties of turbid media. The temporal and spatial propagation of intensity modulated light with frequencies up to more than 1 GHz can be described by the P1 approximation to the Boltzmann transport equation. In this study, we establish requirements for the appropriate choice of turbid model media and characterize mixtures of isosulfan blue as absorber and polystyrene beads as scatterer. For these model media, the independent determination of absorption and reduced scattering coefficients over large absorber and scatterer concentration ranges is demonstrated with a frequency domain photon density wave spectrometer employing intensity and phase measurements at various modulation frequencies.}, language = {en} } @incollection{AscheBoeckmannLaueetal.2000, author = {Asche, Hartmut and B{\"o}ckmann, Christine and Laue, Steffen and L{\"o}hmannsr{\"o}ben, Hans-Gerd and Lemke, Matthias and Schober, Lars and Reich, Oliver and L{\"u}ck, Erika and Sch{\"u}tte, Marc and Domsch, Horst and Makower, Alexander and Scheller, Frieder W. and St{\"o}cklein, Wolfgang and Wollenberger, Ursula and Schultze, Rainer and Hengstermann, Theo and Schael, Frank}, title = {Umweltforschung f{\"u}r das Land Brandenburg : Projekt Umweltanalytik / UmweltmeƟtechnik / Informationssysteme}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-3862}, publisher = {Universit{\"a}t Potsdam}, pages = {176 -- 227}, year = {2000}, language = {de} }