Negative refraction of surface acoustic ...
Document type :
Compte-rendu et recension critique d'ouvrage
Title :
Negative refraction of surface acoustic waves in the subgigahertz range
Author(s) :
Bonello, Bernard [Auteur]
Institut des Nanosciences de Paris [INSP]
Belliard, Laurent [Auteur]
Institut des Nanosciences de Paris [INSP]
Pierre, Juliette [Auteur]
Institut des Nanosciences de Paris [INSP]
Vasseur, Jérôme [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Perrin, Bernard [Auteur]
Institut des Nanosciences de Paris [INSP]
Boyko-Kazymyrenko, Olga [Auteur]
Institut des Nanosciences de Paris [INSP]
Institut des Nanosciences de Paris [INSP]
Belliard, Laurent [Auteur]
Institut des Nanosciences de Paris [INSP]
Pierre, Juliette [Auteur]
Institut des Nanosciences de Paris [INSP]
Vasseur, Jérôme [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Perrin, Bernard [Auteur]
Institut des Nanosciences de Paris [INSP]
Boyko-Kazymyrenko, Olga [Auteur]
Institut des Nanosciences de Paris [INSP]
Journal title :
Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Pages :
104109-1-5
Publisher :
American Physical Society
Publication date :
2010
ISSN :
1098-0121
HAL domain(s) :
Physique [physics]
English abstract : [en]
We used the picosecond ultrasonic technique to experimentally demonstrate the negative refraction of surface acoustic waves in a two-dimensional phononic crystal. The sample is made of a square lattice of circular voids ...
Show more >We used the picosecond ultrasonic technique to experimentally demonstrate the negative refraction of surface acoustic waves in a two-dimensional phononic crystal. The sample is made of a square lattice of circular voids drilled at the surface of a thick silica substrate. The lattice parameter is of a few micrometers. Broad band surface acoustic waves with Fourier components in the gigahertz range were excited. The negative refraction is observed for Rayleigh waves with frequencies in the second band and propagating along the direction ΓM in the reduced Brillouin zone. We then used a plane-wave expansion method to calculate the dispersion of the waves in our sample and to analyze our experimental data.Show less >
Show more >We used the picosecond ultrasonic technique to experimentally demonstrate the negative refraction of surface acoustic waves in a two-dimensional phononic crystal. The sample is made of a square lattice of circular voids drilled at the surface of a thick silica substrate. The lattice parameter is of a few micrometers. Broad band surface acoustic waves with Fourier components in the gigahertz range were excited. The negative refraction is observed for Rayleigh waves with frequencies in the second band and propagating along the direction ΓM in the reduced Brillouin zone. We then used a plane-wave expansion method to calculate the dispersion of the waves in our sample and to analyze our experimental data.Show less >
Language :
Anglais
Popular science :
Non
Source :