title: All-optical bistability and switching near the Dirac point of a 2-D photonic crystal.
abstract: We investigate all-optical switching at the guided mode resonances originating near the Dirac point of a finite, 2-D photonic crystal consisting of a square lattice of dielectric columns possessing a cubic nonlinearity. The peculiar field localization properties of these Dirac-point guided mode resonances conspire to yield extremely low switching threshold at near-to-normal incidence for remarkably low filling factors of the nonlinear material.
authors.affiliation: AEgis Tech., Nanogenesis Division 410 Jan Davis Dr, Huntsville, AL 35806, USA.
authors.forename: Nadia
authors.initials: N
authors.lastname: Mattiucci
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Bloemer
authors.forename: Giuseppe
authors.initials: G
authors.lastname: D'Aguanno
mesh_terms: D003198:Computer Simulation; D008027:Light; D008420:Manufactured Materials; D008962:Models, Theoretical; D017785:Photons; D012542:Scattering, Radiation