Title :
Waveguide localization in graded crystals with antiguiding acoustic velocity profile
Author :
Kozlov, A.V. ; Mozhaev, V.G. ; Zyryanova, A.V.
Author_Institution :
Fac. of Phys., Moscow State Univ., Moscow, Russia
Abstract :
The waveguide localization effect is predicted in graded crystals with concave slowness surface under conditions of ¿antiguiding¿ 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.
Keywords :
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; Acoustic propagation; Acoustic waveguides; Acoustic waves; Anisotropic magnetoresistance; Crystals; Equations; Mirrors; Nonhomogeneous media; Sea surface; Surface acoustic waves; flexural waves; graded crystals; guiding velocity profile; quasishear bulk waves; waveguide effect;
Conference_Titel :
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4389-5
Electronic_ISBN :
1948-5719
DOI :
10.1109/ULTSYM.2009.5441908
