Materials with a desired refraction coefficient can be made by embedding small particles
نویسنده
چکیده
A method is proposed to create materials with a desired refraction coefficient, possibly negative one. The method consists of embedding into a given material small particles. Given n0(x), the refraction coefficient of the original material in a bounded domain D ⊂ R3, and a desired refraction coefficient n(x), one calculates the number N(x) of small particles, to be embedded in D around a point x ∈D per unit volume of D, in order that the resulting new material has refraction coefficient n(x). © 2007 Elsevier B.V. All rights reserved. PACS: 03.04.Kf MSC: 35J05; 35J10; 70F10; 74J25; 81U40; 81V05
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تاریخ انتشار 2007