Journal
PHYSICS LETTERS A
Volume 372, Issue 17, Pages 3098-3101Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2007.12.064
Keywords
nonlinear optics; photonic band gap materials; Goos-Hanchen shift
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We present finite-difference time-domain studies of the Goos-Hanchen effect observed at the reflection of a self-collimated beam from the surface of a two-dimensional photonic crystal. We describe a method of tuning the shift of the reflected beam in photonic crystals through the modification of the surface, first structurally, as a change in the radius of the surface rods, and then all-optically, with the addition of nonlinear material to the surface layer. We demonstrate all-optical tunability and intensity-dependent control of the beam shift. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
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