Electromagnetic scattering by an infinite cylinder of material or metamaterial coating eccentrically a dielectric cylinder

Zouros, GP; Roumeliotis, JA; Stathis, GT

dc.contributor.author	Zouros, GP	en
dc.contributor.author	Roumeliotis, JA	en
dc.contributor.author	Stathis, GT	en
dc.date.accessioned	2014-03-01T01:35:37Z
dc.date.available	2014-03-01T01:35:37Z
dc.date.issued	2011	en
dc.identifier.issn	1084-7529	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21129
dc.subject.classification	Optics	en
dc.subject.other	Closed-form expression	en
dc.subject.other	Coaxial geometry	en
dc.subject.other	Dielectric cylinder	en
dc.subject.other	Electromagnetic scattering	en
dc.subject.other	Expansion coefficients	en
dc.subject.other	Infinite cylinders	en
dc.subject.other	Infinite dielectric cylinders	en
dc.subject.other	Metamaterial coatings	en
dc.subject.other	Normal incidence	en
dc.subject.other	Numerical results	en
dc.subject.other	Scattered field	en
dc.subject.other	Scattering cross section	en
dc.subject.other	Separation of variables	en
dc.subject.other	Translational addition theorems	en
dc.subject.other	Coatings	en
dc.subject.other	Dielectric devices	en
dc.subject.other	Dielectric materials	en
dc.subject.other	Directional patterns (antenna)	en
dc.subject.other	Electromagnetic wave scattering	en
dc.subject.other	Electromagnetism	en
dc.subject.other	Metamaterials	en
dc.subject.other	Spot welding	en
dc.subject.other	Cylinders (shapes)	en
dc.subject.other	article	en
dc.subject.other	electromagnetic field	en
dc.subject.other	impedance	en
dc.subject.other	radiation scattering	en
dc.subject.other	theoretical model	en
dc.subject.other	Electric Impedance	en
dc.subject.other	Electromagnetic Fields	en
dc.subject.other	Models, Theoretical	en
dc.subject.other	Scattering, Radiation	en
dc.title	Electromagnetic scattering by an infinite cylinder of material or metamaterial coating eccentrically a dielectric cylinder	en
heal.type	journalArticle	en
heal.identifier.primary	10.1364/JOSAA.28.001076	en
heal.identifier.secondary	http://dx.doi.org/10.1364/JOSAA.28.001076	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	The electromagnetic scattering by an infinite cylinder of dielectric material or metamaterial, coating eccentrically another infinite dielectric cylinder, is treated in this work. The problem is solved using classical separation of variables techniques. No use is made of the translational addition theorem. For small eccentricities h = d/a(<< 1), where d is the distance between the axes of the cylinders and a the radius of the outer cylinder, we use instead the cosine and the sine laws to satisfy the boundary conditions at the surface of the outer cylinder. Keeping terms up to the order h(2) we finally obtain exact, closed-form expressions for the expansion coefficients g((1)) and gd((2)) in the relation S(h) = S(0)[1 + g((1))h + gd(2)h(2) + O(h(3))], giving the scattered field and the scattering cross sections of the problem, where S(0) corresponds to the coaxial geometry, with h = 0 (d = 0). Both polarizations are considered for normal incidence. Numerical results are given for various values of the parameters, corresponding to materials or metamaterials. Our method is an alternative of the one using the translational addition theorem in the case of small eccentricities h. (C) 2011 Optical Society of America	en
heal.publisher	OPTICAL SOC AMER	en
heal.journalName	Journal of the Optical Society of America A: Optics and Image Science, and Vision	en
dc.identifier.doi	10.1364/JOSAA.28.001076	en
dc.identifier.isi	ISI:000291303700016	en
dc.identifier.volume	28	en
dc.identifier.issue	6	en
dc.identifier.spage	1076	en
dc.identifier.epage	1085	en