title: Near-field laser Doppler velocimetry measures near-wall velocities.
abstract: A new near-wall velocimetry technique is proposed, based on evanescent wave dynamic light scattering, which allows for the measurement of near-wall velocity profile (characterized by an apparent slip velocity and a shear rate) with a resolution of tens of nanometers. A full theoretical expression of the correlation function is derived for the case of linear flow with negligible Brownian motion. The technique is demonstrated for latex spheres dispersed in water-glycerol mixtures.
authors: Foundation for Research and Technology Hellas, Heraklion, Greece. benoit@iesl.forth.gr
authors: B
authors: B
authors: Loppinet
authors: J K G
authors: JK
authors: Dhont
authors: P
authors: P
authors: Lang