title: Sonoluminescence from a single bubble driven at 1 megahertz.
abstract: Measurements of the spectrum of sonoluminescence from an isolated bubble driven at 1 MHz are well fit by assuming thermal bremsstrahlung from a transparent 10(6) degree plasma. According to this interpretation, the photon-matter mean free path is larger than the light-emitting radius of a 1 MHz bubble, but smaller than the light-emitting radius for bubbles driven at approximately 40 kHz, thus accounting for the observed blackbody spectrum at 40 kHz.
authors.affiliation: Physics Department, UCLA, Los Angeles, California 90095, USA.
authors.forename: Carlos
authors.initials: C
authors.lastname: Camara
authors.forename: Seth
authors.initials: S
authors.lastname: Putterman
authors.forename: Emil
authors.initials: E
authors.lastname: Kirilov