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Proceedings Paper

Subwavelength metastructures for dispersion engineering in planar waveguide devices
Author(s): Robert Halir; Alejandro Ortega-Moñux; Pavel Cheben; Alejandro Maese-Novo; Diego Pérez-Galacho; Carlos Alonso-Ramos; Íñigo Molina-Fernández; J. Gonzalo Wangüemert-Pérez; Jens H. Schmid; Dan-Xia Xu; Siegfried Janz
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Paper Abstract

High contrast structures with a sub-wavelength pitch, small enough to suppress diffraction, exhibit extraordinary optical properties: depending on the design they may behave as perfect mirrors, anti-reflective interfaces, homogenous materials with controllable refractive index, or strongly dispersive materials. Here we discuss on the design possibilities such structures offer in planar waveguide devices in silicon-on-insulator. We briefly review the application of sub-wavelength structures in a variety of waveguide devices. We then focus on some of the latest advances in the design ultra-compact and ultra-wideband multimode interference couplers based on dispersion engineered sub-wavelength structures.

Paper Details

Date Published: 19 February 2014
PDF: 7 pages
Proc. SPIE 8995, High Contrast Metastructures III, 89950U (19 February 2014); doi: 10.1117/12.2045727
Show Author Affiliations
Robert Halir, Univ. de Málaga (Spain)
Alejandro Ortega-Moñux, Univ. de Málaga (Spain)
Pavel Cheben, National Research Council Canada (Canada)
Alejandro Maese-Novo, Univ. de Málaga (Spain)
Diego Pérez-Galacho, Univ. de Málaga (Spain)
Carlos Alonso-Ramos, Univ. de Málaga (Spain)
Íñigo Molina-Fernández, Univ. de Málaga (Spain)
J. Gonzalo Wangüemert-Pérez, Univ. de Málaga (Spain)
Jens H. Schmid, National Research Council Canada (Canada)
Dan-Xia Xu, National Research Council Canada (Canada)
Siegfried Janz, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 8995:
High Contrast Metastructures III
Connie J. Chang-Hasnain; David Fattal; Fumio Koyama; Weimin Zhou, Editor(s)

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