Journal
OPTICS EXPRESS
Volume 17, Issue 15, Pages 12470-12480Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.012470
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Funding
- Rowland Junior Fellowship program
- Center for Nanoscale Systems
- National Science Foundation [ECS-0335765]
- Radcliffe Institute for Advanced Studies
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We characterize optical wave propagation along line defects in two-dimensional arrays of air-holes in free-standing silicon slabs. The fabricated waveguides contain random variations in orientation of the photonic lattice elements which perturb the in-plane translational symmetry. The vertical slab symmetry is also broken by a tilt of the etched sidewalls. We discuss how these lattice imperfections affect out-of-plane scattering losses and introduce a mechanism for high-Q cavity excitation related to polarization mixing. (C) 2009 Optical Society of America
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