Abstract

Fresnel reflection and transmission coefficients are well known for the two idealized cases when the two media are either perfect dielectrics [1] or one is a dielectric and the other is a perfect electric conductor (PEC) [2]. However, such is not the case when either one or both media have loss. In a recent paper, Besieris [3] showed that Canning's criticism [4] of the different approaches to the solution of this problem (see Roy [5]) was unnecessary as both are correct in describing the reflection and transmission coefficients when one medium was lossless and the other has loss. The approach taken by Canning [4], as reformulated by Besieris [3], is generalized here to the case when both media have loss, a situation that occurs in layered complex, lossy materials.

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