Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session D15: Thin Films, Surface Flows, and Interfaces I
2:30 PM–5:06 PM,
Monday, March 2, 2020
Sponsoring Units: DFD DSOFT
Abstract: D15.00009 : Flows at Molecular Scales: Probing and Manipulating Ultra-Thin Supported Liquid Films
View Presentation Abstract
We have developed a fully non invasive optical technique [Phys. Rev. Lett., 114, 227801 (2015)] in order to characterize the dynamics of a liquid by measuring the spontaneous thermal fluctuations of its free surface. Liquid films lying on solid substrates are formed with a thickness down to 5 nm using a Marangoni (surface tension gradient induced) flow. Using this technique, we evidence disjoining pressure effects, and are able to probe flow properties of ultra-thin liquid films.
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