title: Novel technique for dynamic surface tension and viscosity measurements at liquid-gas interfaces.
abstract: A novel means of generating and detecting surface waves at liquid-gas interfaces has been successfully developed. Electrocapillarity is used to generate the waves which are detected via specular reflection of a laser beam from the fluid surface to a position sensitive photodiode. Such a scheme is compact, sensitive, and does not mechanically touch the fluid surface. A preliminary study of highly damped waves on the magnetically oriented liquid crystal MBBA is reported.
authors.affiliation: Department of Physics, Northwestern University, Evanston, IL 60201, USA.
authors.forename: C H
authors.initials: CH
authors.lastname: Sohl
authors.forename: K
authors.initials: K
authors.lastname: Miyano
authors.forename: J B
authors.initials: JB
authors.lastname: Ketterson