Acoustic waveguide with a cladded core geometry

15 January 1975

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 26 (2) , 31-34
https://doi.org/10.1063/1.88062

Abstract

A new type of acoustic waveguide analogous to the clad optical fiber waveguide is described and experimental results are given. Modes exist in this structure which confine the acoustic energy to approximately the core due to the lower acoustical velocity in this region. The waveguide is excited with specially electroded bulk shear transducers bonded to the end surfaces. In the ∼100−MHz region both radial and torsional type modes may be attractive for long−delay (near 1 msec) low−loss serial memory applications.

Keywords

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