We propose a new transformation-optics framework based on nonlocal coordinate transformations in the spectral (wavenumber) domain. Our approach allows a physically-incisive and powerful geometrical interpretation in terms of deformation of the equi-frequency contours, and sets the stage for new intriguing developments in dispersion engineering of electromagnetic metamaterials.
Controlling nonlocal light-matter interactions via spectral-domain transformation optics
G. Castaldi;Galdi V;
2012-01-01
Abstract
We propose a new transformation-optics framework based on nonlocal coordinate transformations in the spectral (wavenumber) domain. Our approach allows a physically-incisive and powerful geometrical interpretation in terms of deformation of the equi-frequency contours, and sets the stage for new intriguing developments in dispersion engineering of electromagnetic metamaterials.File in questo prodotto:
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