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Materials Congress 2018
Page 68
Nano Research & Applications
ISSN: 2471-9838
W o r l d C o n g r e s s o n
Materials Science & Engineering
A u g u s t 2 3 - 2 5 , 2 0 1 8
Am s t e r d a m , N e t h e r l a n d s
T
he 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, where a is the characteristic size of particles, d is the smallest distance
between the neighbouring particles, 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 permeability. Equation is derived for the EM field in the medium
in which many small impedance particles are embedded. Similar results are obtained in for heat transfer in the media in which
many small particles are distributed.
ramm@math.ksu.eduWave scattering by many small impedance
particles and creating materials with a desired
refraction coefficient
Alexander G Ramm
Kansas State University, USA
Nano Res Appl 2018, Volume: 4
DOI: 10.21767/2471-9838-C4-018