Non-radiative complete surface acoustic wave bandgap for finite-depth holey phononic crystal in lithium niobate

Yudistira, D, Pennec, Y, Rouhani, B, Dupont, S and Laude, V 2012, 'Non-radiative complete surface acoustic wave bandgap for finite-depth holey phononic crystal in lithium niobate', Applied Physics Letters, vol. 100, no. 6, pp. 1-4.


Document type: Journal Article
Collection: Journal Articles

Title Non-radiative complete surface acoustic wave bandgap for finite-depth holey phononic crystal in lithium niobate
Author(s) Yudistira, D
Pennec, Y
Rouhani, B
Dupont, S
Laude, V
Year 2012
Journal name Applied Physics Letters
Volume number 100
Issue number 6
Start page 1
End page 4
Total pages 4
Publisher American Institute of Physics
Abstract We demonstrate the existence of non-radiative complete surface acoustic wave (SAW) bandgaps for two-dimensional piezoelectric phononic crystals of holes. Holes of finite depth in a semi-infinite LiNbO 3 substrate are specifically considered. SAW bandgaps are determined from the band structure calculated with a three-dimensional finite element method taking into account material anisotropy and piezoelectricity. The effect of hole geometry on the bandgaps has been investigated. It is further found that the complete band gap does not close for moderately conical holes
Subject Acoustics and Acoustical Devices; Waves
Complex Physical Systems
Physical Sciences not elsewhere classified
Keyword(s) energy gap
finite element analysis
phononic crystals
piezoelectric materials
piezoelectricity
surface acoustic waves
DOI - identifier 10.1063/1.3684839
Copyright notice © 2012 American Institute of Physics
ISSN 0003-6951
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