Defect modes in one-dimensional photonic lattices

Details Defect modes in one-dimensional photonic lattices Defect modes in one-dimensional photonic lattices

2005-06-17

arxiv.org/abs/physics/0506149v1

Opt. Lett. 30, 1506 (2005)

Physics

Optics

4 pages, 4 figures

Scientific paper

10.1364/OL.30.001506

Linear defect modes in one-dimensional photonic lattices are studied theoretically. For negative (repulsive) defects, various localized defect modes are found. The strongest confinement of the defect modes appear when the lattice intensity at the defect site is {\em non-zero} rather than zero. When launched at small angles into such a defect site of the lattice, a Gaussian beam can be trapped and undergo snake oscillations under appropriate conditions.

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