Title :
6E-5 High Frequency Surface Waves Scattered in Microstructured Phononic Crystals
Author :
Profunser, Dieter M. ; Wright, Oliver B. ; Matsuda, Osamu ; Lang, Udo ; Abdelkrim, Khelif ; Benchabane, Sarah ; Laude, Vincent
Author_Institution :
Graduate Sch. of Eng., Hokkaido Univ., Sapporo
Abstract :
Using an ultrafast optical technique, broadband surface acoustic wave packets are tracked on 1D and 2D phononic crystals in two dimensions in real time at frequencies up to ~1 GHz. The acoustic band structure is obtained from the data by means of a spatiotemporal Fourier transform. We find stop bands for both leaky longitudinal and Rayleigh waves
Keywords :
Rayleigh waves; acoustic wave scattering; phononic crystals; surface acoustic waves; 1D phononic crystals; 2D phononic crystals; Rayleigh waves; acoustic band structure; broadband surface acoustic wave packets; leaky longitudinal waves; microstructured phononic crystals; spatiotemporal Fourier transform; stop bands; surface waves; ultrafast optical technique; Acoustic scattering; Acoustic waves; Crystal microstructure; Frequency; Optical scattering; Optical surface waves; Rayleigh scattering; Surface acoustic waves; Surface waves; Ultrafast optics;
Conference_Titel :
Ultrasonics Symposium, 2006. IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
1-4244-0201-8
Electronic_ISBN :
1051-0117
DOI :
10.1109/ULTSYM.2006.133
