INVESTIGATION OF SONOLUMINESCENCE AMPLIFICATION UNDER 
THE INTERACTION OF ULTRASONIC FIELDS WIDELY DIFFERING IN FREQUENCY

N. V. Dezhkunov

UDC 541.183.534.2

The laws of sonoluminescence generation under the interaction 
of ultrasonic fields widely differing in frequency have been investigated. 
It is shown that nonadditive amplification of the sonoluminescence 
is observed not only under the simultaneous action of the fields on 
a liquid, but also in a high-frequency field after preliminary insonification 
of the liquid by a low-frequency field. The phenomenon of a long-duration 
aftereffect of the low-frequency field on the cavitation generated 
by the high-frequency field has been revealed. On the basis of the 
obtained results the conclusion has been drawn that the main mechanism 
of increasing the cavitation activity in the interacting fields is 
the generation of new cavitation nuclei as a result of the collapse 
of bubbles excited by the low-frequency field.

Belarusian State University of Informatics and Radioelectronics, 
Minsk, Belarus; email:vnd@busuir.edu.by. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 76, No. 1, pp. 120-127, January-February, 2003. 
Original article submitted July 23, 2002.