Mattiucci, NadiaBloemer, Mark J.D’Aguanno, Giuseppe2020-05-212020-05-212013Mattiucci, Nadia; Bloemer, Mark J.; D’Aguanno, Giuseppe; All-optical bistability and switching near the Dirac point of a 2-D photonic crystal; Optics Express Vol. 21, Issue 10, pp. 11862-11868 (2013); https://www.osapublishing.org/oe/abstract.cfm?uri=oe-21-10-11862https://doi.org/10.1364/OE.21.011862http://hdl.handle.net/11603/18692We 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.7 pagesen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Public Domain Mark 1.0This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.Text