title: Experimental Determination of Four-Time Stimulated Echoes in Liquids, Colloidal Suspensions, and Crystals
abstract: Four-time stimulated echo experiments have been used to monitor the temporal evolution of the reorientation rates of deuterated molecules or colloidal suspensions. We present extended phase cycles for this seven-pulse experiment. In order to test its performance three vastly different materials are chosen. These include a crystal in which the molecules carry out well-defined 180 degrees flips and a supercooled liquid characterized by a distribution of jump angles centered around 10 degrees. As an example for rotational diffusion, data on a concentrated suspension of polystyrene spheres in a viscous medium are presented. Copyright 1998 Academic Press.
authors.affiliation: Institut für Physikalische Chemie, Johannes Gutenberg-Universität, D55099 Mainz, Germany
authors.initials: G
authors.lastname: Hinze
authors.initials: R
authors.lastname: Böhmer
authors.initials: G
authors.lastname: Diezemann
authors.initials: H
authors.lastname: Sillescu