Enhancement of high-frequency acoustic cavitation effects by a low-frequency stimulation.
The cavitation effects given by a high-frequency pulsed ultrasound field are studied with and without the stimulation of a low-frequency field. Sonoluminescence intensity and subharmonic one-half intensity of the high-frequency field are measured. The stimulation gives a sharp rise of both subharmonic and sonoluminescence intensities.
Department of Physics, University of Trieste, Italy.
G
G
Lernetti
P
P
Ciuti
N V
NV
Dezhkunov
M
M
Reali
A
A
Francescutto
G K
GK
Johri