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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2011

Level repulsion and evanescent waves in sonic crystals

V. Romero-Garcia
Jerome O. Vasseur
Anne-Christine Hladky
Lluis Miquel Garcia-Raffi
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J.V. Sanchez-Perez
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Résumé

This work theoretically and experimentally reports the evanescent connections between propagating bands in periodic acoustic materials. The complex band structures obtained by solving for the k(ω) problem reveal a complete interpretation of the propagation properties of these systems. The prediction of evanescent modes, non predicted by classical ω(~k) methods, is of interest for the understanding of these propagation properties. Complex band structures provide an interpretation of the evanescent coupling and the level repulsion states showing the possibility to control of evanescent waves in periodic materials.
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Dates et versions

hal-00783380 , version 1 (15-07-2022)

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Citer

V. Romero-Garcia, Jerome O. Vasseur, Anne-Christine Hladky, Lluis Miquel Garcia-Raffi, J.V. Sanchez-Perez. Level repulsion and evanescent waves in sonic crystals. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 84, pp.212302-1-4. ⟨10.1103/PhysRevB.84.212302⟩. ⟨hal-00783380⟩

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