Title :
Subsonic nondiffracting waves in anisotropic crystals
Author :
Salo, Janne ; Fagerholm, Juha ; Friberg, Ari T. ; Salomaa, Martti M.
Author_Institution :
Mater. Phys. Lab., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
We formulate nondiffracting waves (NDW) in a way which is directly applicable to isotropic as well as to anisotropic waves. Using this description, we show that anisotropic NDWs show both new qualitative and quantitative properties when compared with corresponding isotropic waves. In particular, we demonstrate that anisotropic materials can support subsonic NDWs while only supersonic nondiffracting solutions are known for isotropic wave motion
Keywords :
acoustic wave propagation; elastic waves; anisotropic crystals; anisotropic materials; anisotropic waves; isotropic wave motion; isotropic waves; subsonic NDWs; subsonic nondiffracting waves; supersonic nondiffracting solutions; Anisotropic magnetoresistance; Crystalline materials; Crystals; Laboratories; Mathematics; Partial differential equations; Physics; Scientific computing; Shape; Surface waves;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.765049
