Waveguide localization in graded crystals with antiguiding acoustic velocity profile

Kozlov, A.V.,Mozhaev, V.G.,Zyryanova, A.V.

Ultrasonics Symposium（2009）

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摘要

The waveguide localization effect is predicted in graded crystals with concave slowness surface under conditions of Â¿antiguidingÂ¿ growth of the phase velocity of acoustic waves on the waveguide axis. This effect is elucidated by means of ray analysis and particular exact solutions for localized quasishear bulk waves and localized thin-plate flexural waves.

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关键词

acoustic wave velocity,acoustic waveguides,elastic waves,acoustic wave phase velocity,antiguiding acoustic velocity profile,antiguiding growth,concave slowness surface,graded crystals,localized quasishear bulk waves,localized thin plate flexural waves,ray analysis,waveguide axis,waveguide localization,flexural waves,guiding velocity profile,quasishear bulk waves,waveguide effect,predictive models,anisotropic magnetoresistance,exact solution,acoustics,phase velocity,mathematical model,crystals,surface waves,acoustic waves

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