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Proceedings Paper

Near-field optical microscopy of light propagation through photonic crystal waveguide tapers
Author(s): R. Wuest; Benjamin C. Buchler; Rik Harbers; Patric Strasser; K. Rauscher; F. Robin; Daniel Erni; Vahid Sandoghdar; H. Jackel
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Paper Abstract

We report on the investigation of planar photonic crystal waveguide transitions with a scanning near-field optical microscope (SNOM) in collection mode. An abrupt and a gradual taper design intended to couple light from a W3 (three missing rows of holes) to a W1 waveguide were fabricated in a InGaAsP slab waveguide. SNOM measurements reveal that a taper design can efficiently funnel light into the W1 waveguide. For both designs a suppressed coupling of light into the W1 waveguide is measured for a frequency which corresponds to a mode crossing which we determined by 3D plane wave simulations.

Paper Details

Date Published: 7 July 2005
PDF: 8 pages
Proc. SPIE 5840, Photonic Materials, Devices, and Applications, (7 July 2005); doi: 10.1117/12.608252
Show Author Affiliations
R. Wuest, ETH Zurich (Switzerland)
Benjamin C. Buchler, ETH Zurich (Switzerland)
Rik Harbers, ETH Zurich (Switzerland)
Patric Strasser, ETH Zurich (Switzerland)
K. Rauscher, ETH Zurich (Switzerland)
F. Robin, ETH Zurich (Switzerland)
Daniel Erni, ETH Zurich (Switzerland)
Vahid Sandoghdar, ETH Zurich (Switzerland)
H. Jackel, ETH Zurich (Switzerland)

Published in SPIE Proceedings Vol. 5840:
Photonic Materials, Devices, and Applications
Goncal Badenes; Derek Abbott; Ali Serpenguzel, Editor(s)

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