title: Single-scattering spectroscopy for extremely dense colloidal suspensions by use of a low-coherence interferometer.
abstract: Single-scattering spectroscopy by use of a low-coherence interferometer is introduced to measure the power spectra of light scattered from extremely dense colloidal suspensions. The power spectrum of a heterodyne component can be obtained by subtraction of the power spectrum of a homodyne component from the measured power spectrum. The heterodyne power spectrum for light scattered from the medium is shown to coincide with the single-scattering spectrum to a depth of up to a few times the mean-free path length. Therefore single-scattering spectroscopy is newly proposed as a means by which to analyze the characteristics of extremely dense colloidal suspensions.
authors.affiliation: Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 0600812, Japan.
authors.forename: Katsuhiro
authors.initials: K
authors.lastname: Ishii
authors.forename: Rikiya
authors.initials: R
authors.lastname: Yoshida
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Iwai