1 research outputs found
Localized modes in nonlinear photonic kagome nanoribbons
We examine localization of light in nonlinear (Kerr) kagome lattices in the
shape of narrow strips of varying width. For the narrowest ribbon, the band
structure features a flat band leading to linear dynamical trapping of an
initially localized excitation. We also find a geometry-induced bistability of
the nonlinear modes as the width of the strip is changed. A crossover from one
to two dimensions localization behavior is observed as the width is increased,
attaining two-dimensional behavior for relatively narrow ribbons.Comment: 4 pages, 8 figures, submitted for publicatio