204 citations · 749 across the 51 of their papers we have counts for
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physics.optics2005★ 19 cited
Bounds for the refractive indices of metamaterials
Johannes Skaar, Kristian Seip
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. Specia…
math.CV2005★ 4 cited
An extremal problem related to negative refraction
Kristian Seip, Johannes Skaar
We solve an extremal problem that arises in the study of the refractive indices of passive metamaterials. The problem concerns Hermitian functions in of the upper half-plane,…