TY - GEN
T1 - Full band gaps for surface acoustic waves in piezoelectric phononic crystals
AU - Laude, Vincent
AU - Wilm, Mikael
AU - Benchabane, Sarah
AU - Khelif, Abdelkrim
PY - 2004
Y1 - 2004
N2 - Surface acoustic waves in phononic crystals consisting of holes in a Y-cut lithium niobate substrate are identified numerically using a plane-wave-expansion method. The phononic crystal has a square lattice with circular void inclusions with a filling fraction of 63%. 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, co-incidentally with the full band gap for bulk waves propagating in the plane of the surface.
AB - Surface acoustic waves in phononic crystals consisting of holes in a Y-cut lithium niobate substrate are identified numerically using a plane-wave-expansion method. The phononic crystal has a square lattice with circular void inclusions with a filling fraction of 63%. 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, co-incidentally with the full band gap for bulk waves propagating in the plane of the surface.
UR - http://www.scopus.com/inward/record.url?scp=21644475409&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2004.1417952
DO - 10.1109/ULTSYM.2004.1417952
M3 - Conference contribution
AN - SCOPUS:21644475409
SN - 0780384121
T3 - Proceedings - IEEE Ultrasonics Symposium
SP - 1046
EP - 1049
BT - Proceedings - 2004 IEEE Ultrasonics Symposium
A2 - Yuhas, M.P.
T2 - 2004 IEEE Ultrasonics Symposium
Y2 - 23 August 2004 through 27 August 2004
ER -