title: Observation of light propagation in volume scatterers with 10(11)-fold slow motion.
abstract: An optical method is introduced for observation of temporally and spatially resolved frames that show how light propagates in diffusely scattering materials. The method permits videos with 100-fs resolution in time to be produced. The method utilizes short-coherence interferometry. The source of information is the speckle contrast. The temporal and spatial evolution of the multiple scattering process is demonstrated for several biological and industrial samples. A major objective of the method is to investigate the conditions for optimum coherence and optimum apertures to achieve high resolution in the short-coherence interferometry. One important result is that during the propagation a sharp photon horizon evolves, which is useful for the morphological analysis of volume scatterers.
authors.forename: G
authors.initials: G
authors.lastname: Häusler
authors.forename: J M
authors.initials: JM
authors.lastname: Herrmann
authors.forename: R
authors.initials: R
authors.lastname: Kummer
authors.forename: M W
authors.initials: MW
authors.lastname: Lindner