Title :
Experimental investigation of surface acoustic wave interaction with 2D array PnC with various lattice symmetries
Author :
Talbi, A. ; Du, Yun ; Yankin, S. ; Streque, Jeremy ; Gerbedoen, J.-C. ; Mrabti, A. ; Akjouj, A. ; Pennec, Yan ; Djafari Rouhani, Bahram ; Pernod, Philippe ; Preobrazhensky, V. ; Boumatar, O. ; Tang, Hongying
Author_Institution :
LIA LICS/LEMAC, PRES Lille Nord de France, Villeneuve-d´Ascq, France
Abstract :
This paper presents experimental investigation of interaction between surface acoustic wave and 2D surface PnCs. The PnC is made of 2D array of resonant Ni pillars arranged in different symmetries lattices, and deposited on LiNBO3 (Y128 cut) substrate. Measurements of transmission spectra (amplitude, phase) was exploited to demonstrate the existence of opening band-gaps originating from local resonant state and Bragg gap scattering.
Keywords :
acoustic metamaterials; energy gap; nickel; phononic crystals; resonant states; surface acoustic waves; 2D array PnC; 2D surface PnC; Bragg gap scattering; LiNbO3; Ni; lattice symmetries; local resonant state; opening band-gaps; resonant Ni pillars; surface acoustic wave interaction; transmission spectra measurements; Arrays; Crystals; Lattices; Lithium niobate; Photonic band gap; Surface acoustic waves; LiNBO3; Phononic Crystal (PnC); SAW; pillars;
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
Print_ISBN :
978-1-4673-5684-8
DOI :
10.1109/ULTSYM.2013.0544