Bounds for the refractive indices of metamaterials
arXiv:physics/0507001 · doi:10.1088/0022-3727/39/6/032
Abstract
The set of realizable refractive indices as a function of frequency is considered. For passive media we give bounds for the refractive index variation in a finite bandwidth. Special attention is given to the loss and index variation in the case of left-handed materials.
7 pages, 1 figure