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      Angular and frequency spectral analysis of the ultrasonic backward beam displacement on a periodically grooved solid

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      The Journal of the Acoustical Society of America
      Acoustical Society of America (ASA)

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          Sound Attenuation by a Two-Dimensional Array of Rigid Cylinders

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            Guiding and bending of acoustic waves in highly confined phononic crystal waveguides

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              Full band gap for surface acoustic waves in a piezoelectric phononic crystal.

              A plane-wave-expansion method suited to the analysis of surface-acoustic-wave propagation in two-dimensional piezoelectric phononic crystals is described. The surface modes of a square-lattice Y-cut lithium niobate phononic crystal with circular void inclusions with a filling fraction of 63% are identified. It is found that a large full band gap with a fractional bandwidth of 34% exists for surface acoustic waves of any polarization and incidence, coincidentally with the full band gap for bulk waves propagating in the plane of the surface. The excitation of surface acoustic waves by interdigital transducers is discussed.
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                Author and article information

                Journal
                The Journal of the Acoustical Society of America
                The Journal of the Acoustical Society of America
                Acoustical Society of America (ASA)
                0001-4966
                December 2009
                December 2009
                : 126
                : 6
                : 2939-2948
                Article
                10.1121/1.3243467
                a03101a7-e2c9-47e6-b58c-23ba25b23e7d
                © 2009
                History

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