DocumentCode
109737
Title
Focusing capability of a phononic crystal based on a hollow metallic structure
Author
Hladky-Hennion, A.-C. ; Croenne, Charles ; Vasseur, J.O. ; Haumesser, Lionel ; Norris, A.N.
Author_Institution
Inst. d´Electron. de Microelectron. et de Nanotechnol. (IEMN), Lille, France
Volume
61
Issue
8
fYear
2014
fDate
Aug-14
Firstpage
1314
Lastpage
1321
Abstract
The dispersion curves of a phononic crystal (PC) based on a hollow metallic structure are presented. They exhibit a negative refraction dispersion branch and perfect refractive index matching with the surrounding water, leading to focusing capability. Numerical and experimental results are reported for a flat PC lens. The characteristics of the focal spot (intensity, dimensions, etc.) are numerically and experimentally investigated with the goal of finding the frequency of the optimal imaging performance.
Keywords
phononic crystals; refractive index; dispersion curves; hollow metallic structure; negative refraction dispersion; optimal imaging; phononic crystal; refractive index; Dispersion; Focusing; Indexes; Lattices; Lenses; Slabs; Wavelength measurement;
fLanguage
English
Journal_Title
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
Publisher
ieee
ISSN
0885-3010
Type
jour
DOI
10.1109/TUFFC.2014.3038
Filename
6863852
Link To Document