Title :
Bragg´s law generalized to time-space periodic media
Author_Institution :
Chalmers Univ. Technol., Gothenburg, Sweden
Abstract :
Bragg´s law for scattering from space-periodic media is generalized to take into account that the scatterers are moving. Scattering from a Bragg cell with an acoustic disturbance is studied, and the frequency shift of the scattered wave is derived, without approximations, as a Doppler shift.
Keywords :
Acoustic propagation; Acoustic scattering; Acoustic waves; Doppler shift; Equations; Frequency; Light scattering; Nonhomogeneous media; Optical propagation; Optical reflection;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1971.8411
