Authors: | W. Bogaerts, P. Bienstman, R. Baets | Title: | Scattering at sidewall roughness in photonic crystal slabs | Format: | International Journal | Publication date: | 4/2003 | Journal/Conference/Book: | Optics Letters
| Editor/Publisher: | OSA, | Volume(Issue): | 28(9) p.689-691 | DOI: | 10.1364/OL.28.000689 | Citations: | 60 (Dimensions.ai - last update: 29/9/2024) 38 (OpenCitations - last update: 3/5/2024) Look up on Google Scholar
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Abstract
We have simulated the effect of sidewall roughness in photonic-crystal-like structures for varying vertical refractive index contrast. We treat the scattering off a sidewall irregularity as a radiating dipole excited by the incident waveguide mode. We show that the loss due to this scattering is significantly larger for structures with a low refractive index contrast (like GaAs/AlGaAs waveguides) compared to structures with a high vertical index contrast (like Silicon-on-insulator or membranes). Related Research Topics
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