Title :
Localization of acoustic waves in complex structures
Author :
Alippi, A. ; Bettuci, A. ; Craciun, F. ; Farrelly, F.
fDate :
Oct. 31 1994-Nov. 3 1994
Abstract :
The origin of the localization of acoustic waves in slightly disordered structures and the distribution of modes in the curve of the density of states are discussed. The experimental evidence of localized modes in one- and two-dimensional plates is briefly reported, together with two characteristics they present which are different from the ones of the distributed modes: an enhanced nonlinear behaviour in the generation of subharmonic waves and different lifetimes
Keywords :
acoustic wave propagation; acoustic waves; nonlinear acoustics; ultrasonic measurement; acoustic wave localization; acoustic wave propagation; complex structures; enhanced nonlinear behaviour; lifetimes; one-dimensional plates; slightly disordered structures; subharmonic waves; two-dimensional plates; Acoustic measurements; Acoustic propagation; Nonlinear acoustics; Plates;
Conference_Titel :
Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE
Conference_Location :
Cannes, France
Print_ISBN :
0-7803-2012-3
DOI :
10.1109/ULTSYM.1994.401766
