Graded photonic crystals.
We present a concept of graded photonic crystals used to enhance the control of light propagation. Gradual modifications of the lattice periodicity make it possible to bend the light at the micrometer scale. This effect is tailored by parametric studies of the isofrequency curves. As a demonstration, we propose a two-dimensional graded photonic crystal that could provide frequency-selective tunable bending.
Centeno
Emmanuel
E
GES UMR-CNRS 5650 Université Montpellier II, Place E. Bataillon, CC074, 34095 Montpellier, France.
Cassagne
David
D