Minimal model for spoof acoustoelastic surface states

Journal Article · Mon Dec 15 00:00:00 EST 2014 · AIP Advances

DOI:https://doi.org/10.1063/1.4901282· OSTI ID:22299637

Willatzen, M. ^[1]; Liang, Z. ^[2]

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1. Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby (Denmark)
2. College of Electronic Science and Technology, Shenzhen University, Shenzhen (China)

Similar to textured perfect electric conductors for electromagnetic waves sustaining artificial or spoof surface plasmons we present an equivalent phenomena for the case of sound. Aided by a minimal model that is able to capture the complex wave interaction of elastic cavity modes and airborne sound radiation in perfect rigid panels, we construct designer acoustoelastic surface waves that are entirely controlled by the geometrical environment. Comparisons to results obtained by full-wave simulations confirm the feasibility of the model and we demonstrate illustrative examples such as resonant transmissions and waveguiding to show a few examples of many where spoof elastic surface waves are useful.

• OSTI ID: 22299637
• Journal Information: AIP Advances, Vol. 4, Issue 12; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRIC CONDUCTORS
ELECTROMAGNETIC RADIATION
INTERACTIONS
PLASMONS
SIMULATION
SOUND WAVES
SURFACES
TEXTURE
WAVE PROPAGATION