Dr. Sascha Hilgenfeldt
AG Statistische Physik
Universitaet Marburg
Germany

Tuesday, September 16, 1997
2:00 pm (CT)
3269 Beckman Institute

Abstract

Recent work on single bubble sonoluminescence (SBSL) has shown that many features of this phenomenon, especially the dependence of SBSL intensity and stability on experimental parameters, can be explained from an analysis of bubble wall dynamics, which is conveniently described by the Rayleigh-Plesset (RP) equation. In this work, analytical approximations for RP dynamics and subsequent analytical laws for parameter dependences are derived. Taking into account bubble instability against surface oscillations, we conclude that the ideal liquid for violently collapsing, surface stable SL bubbles should have small surface tension and large viscosity.

Tea and coffee will be served in R3151 Beckman Institute at 2:15pm.