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Proceedings Paper

High-speed polarization modulation in a hybrid ridge-plasmonic waveguide
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Paper Abstract

We propose a novel hybrid ridge-plasmonic waveguide Faraday rotator for high-speed polarization manipulation in nanoplasmonic circuitry. Our design, based on bismuth-substituted yttrium iron garnet (Bi:YIG), provides a unique geometrical mechanism of phase matching both the plasmonic TM and photonic TE waveguide modes, and hence facilitates effective mode conversion via the Faraday effect. This structure yields 99.4% mode conversion within 830 μm, which is easily attainable within the long (>1mm) propagation lengths of the two supported modes. Furthermore, our simulations show that the application of magnetic field transients can alter the magnetization of the Bi:YIG to actively switch the polarization state, or produce a polarization oscillator at frequencies up to 10GHz. This structure is envisioned to play a fundamental role in future integrated nanoplasmonic networks.

Paper Details

Date Published: 23 February 2017
PDF: 7 pages
Proc. SPIE 10102, Ultrafast Phenomena and Nanophotonics XXI, 101020O (23 February 2017); doi: 10.1117/12.2252610
Show Author Affiliations
C. J. Firby, Univ. of Alberta (Canada)
P. Chang, Univ. of Toronto (Canada)
A. S. Helmy, Univ. of Toronto (Canada)
A. Y. Elezzabi, Univ. of Alberta (Canada)

Published in SPIE Proceedings Vol. 10102:
Ultrafast Phenomena and Nanophotonics XXI
Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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