Wave scattering by many small impedance particles and creating materials with a desired refraction coefficient

4^th International Conference on High Energy & Particle Physics

December 03-04, 2018 | Valencia, Spain

Alexander G Ramm

Kansas State University, USA

Posters & Accepted Abstracts: J Astrophys Aerospace Technol

Abstract :

The theory of acoustic and electromagnetic (EM) wave scattering by one and many small impedance particles of arbitrary shapes is developed. The basic assumptions are: a d λ, where a is the characteristic size of particles, d is the smallest distance between the neighboring particles, λ is the wavelength. This theory allows one to give a recipe for creating materials with a desired refraction coefficient. One can create material with negative refraction: the group velocity in this material is directed opposite to the phase velocity. One can create a material with a desired wave focusing property. Equation is derived for the EM field in the medium in which many small impedance particles are embedded.

Biography :

E-mail: ramm@math.ksu.edu