Ciuti P, Dezhkunov N V, Francescutto A, Calligaris F, Sturman F
Department of Physics, University of Trieste, via A.Valerio 2, 34127 Trieste, Italy.
Ultrason Sonochem. 2003 Oct;10(6):337-41. doi: 10.1016/S1350-4177(03)00097-X.
The main factor of the enhancement of sonoluminescence (SL) emission by the interaction of two fields of highly different frequencies is the generation of new cavitation nuclei upon collapse of bubbles driven by the low-frequency (LF) field. The factors connected with the direct interaction of the two fields play a significant role in the enhancement of SL emission only in the case when intensities of the fields are less or not much higher than the corresponding thresholds of SL emission. The phenomena of afteraction of the LF field on cavitation generated by the high-frequency field is explained also by the generation of new nuclei upon collapse of bubbles driven by the LF fields.
由两个频率差异极大的场相互作用增强声致发光（SL）发射的主要因素是，在低频（LF）场驱动的气泡崩溃时会产生新的空化核。仅当两个场的强度小于或略高于SL发射的相应阈值时，与两个场直接相互作用相关的因素才在增强SL发射中起重要作用。低频场对高频场产生的空化的后效应现象，也可通过低频场驱动的气泡崩溃时产生新核来解释。
