Journal
OPTICS EXPRESS
Volume 21, Issue 10, Pages 11862-11868Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.011862
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Funding
- DARPA SBIR project [W31P4Q-11-C-0109]
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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. (C) 2013 Optical Society of America
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