BibTex format
@article{McCall:2015,
author = {McCall, MW},
journal = {Journal of Optics},
title = {The Refractive Index of Electromagnetically Reciprocal Media},
url = {http://hdl.handle.net/10044/1/29938},
year = {2015}
}
Publications
Citation
RIS format (EndNote, RefMan)
TY - JOUR
AB - We study the electromagnetics of media described by identical inhomogeneous relative dielectric and magnetic tensors, € = µ. Such media occur generically as spatial transformation media , i.e. electromagnetic media that are defined by a deformation of space. We show that such media are completely described by a refractive index n (r,) that depends on position r and direction, but is independent of polarization. The phase surface is alwaysellipsoidal, and n (r,) is therefore represented by the radius vector to the surface of the ellipsoid. We apply our method to calculate the angular dependence of the refractive index in the well-studied cylindrical cloak and to a new kind of structurally chiral medium induced by a twist deformation. By way of a simple example we also show that media for which € = µ do notin general preserve the impedance properties of vacuum. The implications ofthis somewhat surprising conclusion for the field of transformation optics are discussed.
AU - McCall,MW
PY - 2015///
SN - 2040-8978
TI - The Refractive Index of Electromagnetically Reciprocal Media
T2 - Journal of Optics
UR - http://hdl.handle.net/10044/1/29938
ER -