DocumentCode
1997622
Title
Negatively refracted transverse waves : study of the ultrasonic field at the exit of an elastic phononic crystal
Author
Morvan, B. ; Tinel, A. ; Hladky-Hennion, A.C. ; Vasseur, J. ; Groby, J.P. ; Dubus, B. ; Djafari-Rouhani, B.
Author_Institution
LOMC, Le Havre, France
fYear
2009
fDate
20-23 Sept. 2009
Firstpage
1126
Lastpage
1129
Abstract
A two-dimensional phononic crystal (PC) with square lattices composed of air holes in aluminum matrix is studied. The band structure of the PC exhibits some properties which allow the negative refraction of transverse wave transmitted through the PC. The left-handed behaviour of the PC is verified numerically with an emphasis on the process of refracted beam construction near the exit surface of the PC.
Keywords
band structure; metamaterials; phononic crystals; ultrasonic refraction; ultrasonic waves; 2D phononic crystal; air holes; aluminum matrix; band structure; elastic phononic crystal exit; left-handed behaviour; negative refraction; negatively refracted transverse waves; square lattices; ultrasonic field; Aluminum; Crystals; Filtering; Frequency; Lattices; Phased arrays; Solids; Steel; Structural beams; Surface waves; Negative refraction; Phononic crystal; Transverse wave;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location
Rome
ISSN
1948-5719
Print_ISBN
978-1-4244-4389-5
Electronic_ISBN
1948-5719
Type
conf
DOI
10.1109/ULTSYM.2009.5441694
Filename
5441694
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