Title :
Analysis of cladded acoustic fibers of hexagonal crystal symmetry
Author :
Dai, J.D. ; Winkel, V. ; Oliveira, J.E.B. ; Jen, C.K.
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
A cladded acoustic fiber consisting of a core and an infinite thick cladding both having a hexagonal crystal symmetry is analyzed. The crystalline Z axes of both core and cladding are parallel to the fiber axis. Dispersion equations and field distributions for all modes are derived, and previously reported results for the isotropic case are retrieved. Numerical results for a few lowest-order pure guided torsional, radial-axial and flexural modes are shown. Material considerations are discussed.<>
Keywords :
acoustic dispersion; acoustic wave propagation; acoustic waveguides; fibres; acoustic fiber theory; cladded acoustic fibers; crystalline Z axes; dispersion equations; field distributions; flexural modes; guided flexural modes; guided radial-axial modes; guided torsional modes; hexagonal crystal symmetry; infinite thick cladding; isotropic case; lowest order modes; Acoustic imaging; Acoustic materials; Acoustic propagation; Acoustic waves; Anisotropic magnetoresistance; Brazil Council; Crystalline materials; Crystallization; Delay lines; Equations;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
