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Optical Engineering

Nanoplasmonic optical switch based on Ga-Si3N4-Ga waveguide
Author(s): Wangshi Zhao; Zhaolin Lu
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Paper Abstract

In this paper, we propose an optical switch based on a metal-insulator-metal plasmonic waveguide with Si3N4 core sandwiched between two gallium (Ga) metal layers. Combining the unique structural phase transition property of gallium, within a total length of only 400 nm, an extinction ratio as high as 7.68 dB can be achieved in the proposed nanoplasmonic structure. The phase transition may be achieved by changing the temperature of the waveguide or by external light excitation.

Paper Details

Date Published: 1 July 2011
PDF: 7 pages
Opt. Eng. 50(7) 074002 doi: 10.1117/1.3595868
Published in: Optical Engineering Volume 50, Issue 7
Show Author Affiliations
Wangshi Zhao, Rochester Institute of Technology (United States)
Zhaolin Lu, Rochester Institute of Technology (United States)

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