TY - JOUR
T1 - Full band gap for surface acoustic waves in a piezoelectric phononic crystal
AU - Laude, Vincent
AU - Wilm, Mikaël
AU - Benchabane, Sarah
AU - Khelif, Abdelkrim
PY - 2005/3
Y1 - 2005/3
N2 - A plane-wave-expansion method suited to the analysis of surface-acoustic-wave propagation in two-dimensional piezoelectric phononic crystals is described. The surface modes of a square-lattice Y-cut lithium niobate phononic crystal with circular void inclusions with a filling fraction of 63% are identified. It is found that a large full band gap with a fractional bandwidth of 34% exists for surface acoustic waves of any polarization and incidence, coincidentally with the full band gap for bulk waves propagating in the plane of the surface. The excitation of surface acoustic waves by interdigital transducers is discussed.
AB - A plane-wave-expansion method suited to the analysis of surface-acoustic-wave propagation in two-dimensional piezoelectric phononic crystals is described. The surface modes of a square-lattice Y-cut lithium niobate phononic crystal with circular void inclusions with a filling fraction of 63% are identified. It is found that a large full band gap with a fractional bandwidth of 34% exists for surface acoustic waves of any polarization and incidence, coincidentally with the full band gap for bulk waves propagating in the plane of the surface. The excitation of surface acoustic waves by interdigital transducers is discussed.
UR - http://www.scopus.com/inward/record.url?scp=41349110210&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.71.036607
DO - 10.1103/PhysRevE.71.036607
M3 - Article
AN - SCOPUS:41349110210
SN - 1539-3755
VL - 71
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 3
M1 - 036607
ER -