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Article Dans Une Revue Journal of Applied Physics Année : 2012

Multifunctional solid/solid phononic crystal

Résumé

A two-dimensional, solid/solid phononic crystal (PC) comprised a square array of steel cylinders in epoxy is shown to perform a variety of spectral, wave vector, and phase-space functions. Over a range of operating frequencies, the PC’s elastic band structure shows uniquely shaped equifrequency contours that are only accessible to excitations of longitudinal polarization. Under this condition, the PC is shown to behave as (1) an acoustic wave collimator, (2) a defect-less wave guide, (3) a directional source for elastic waves, (4) an acoustic beam splitter, (5) a phase-control device, and (6) a k-space multiplexer. Wave vector diagrams and finite-difference time-domain simulations are employed to authenticate the above mentioned capabilities
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Dates et versions

hal-00786892 , version 1 (25-05-2022)

Identifiants

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N. Swinteck, Jerome O. Vasseur, Anne-Christine Hladky, Charles Croënne, S. Bringuier, et al.. Multifunctional solid/solid phononic crystal. Journal of Applied Physics, 2012, 112 (2), pp.024514. ⟨10.1063/1.4739264⟩. ⟨hal-00786892⟩
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