Title :
On violation of Rayleigh and Bragg laws of scattering
Author :
Chukov, Vitalii N.
Author_Institution :
Center of Acoust. Microscopy, N.M. Emanuel Inst. of Biochem. Phys., Russia
fDate :
May 30 2011-June 3 2011
Abstract :
The problem of Rayleigh wave scattering by deterministic cylindrically symmetrical roughness occupying finite size region of isotropic solid surface is solved in Born (Rayleigh-Born) approximation of perturbation theory in roughness amplitude. Formula for displacement field in the scattered Rayleigh wave at big distance from roughness and asymptotic formulas for the mentioned displacement field in Rayleigh (long-wavelength) and in the short-wavelength limits are derived. The new laws of scattering violating Rayleigh law in the long-wavelength limit and Bragg law in the short-wavelength limit are obtained.
Keywords :
Rayleigh scattering; Rayleigh waves; acoustic wave scattering; perturbation theory; surface resistance; Bragg scattering law; Rayleigh scattering law; Rayleigh wave scattering; Rayleigh-Born approximation; deterministic cylindrically symmetrical roughness; isotropic solid surface; perturbation theory; short-wavelength limit; Diffraction; Manganese; Oscillators; Rough surfaces; Scattering; Surface roughness; Surface waves;
Conference_Titel :
Days on Diffraction (DD), 2011
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4577-1577-8
DOI :
10.1109/DD.2011.6094365
