Abstract
The propagation of light in photonic structures is governed by the dispersion curve ω(k) relating the frequency ω to the spatial wave vector k. Engineering the slope of the dispersion curve allows to implement innovative concepts such as slow light in coupled resonators, with surface plasmons or in photonic crystal structures. In this context, some important regions of the dispersion curves lie outside of the light cone, implying that the associated modes do not radiate into free space and as a result propagate with minimal optical losses.
© 2007 IEEE
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