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Proceedings Paper

Equivalent circuit model for plasmonic slot waveguides networks
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Paper Abstract

Plasmonic slot waveguide (PSW) provides unique ability to confine the light in few nanometers only. It also allows for near perfect transmission through sharp bends. These features motivate utilizing the PSW in various on chip applications that require nanoscale manipulation of light. The main challenge of using these PSWs are the associated high losses that allow for propagation length of ~10 μm only. However, this constraint plays a minimal rule for circuits designed to have footprint in the order of few micrometers only. Thus, designing PSW with compact size and superior performance is of prime essential. Finite difference time domain (FDTD) is usually utilized for modeling of such networks. This technique is, however, inefficient as it requires very fine grid and carful manipulation of the boundary condition to avoid spurious reflections. In the paper, we present our recent equivalent circuit model that is capable of accurately modeling the various junctions including T and X shapes. This model is highly efficient and allows for obtaining a closed form expression of the response of any network of PSW with accuracy comparable to the FDTD results.

Paper Details

Date Published: 6 March 2013
PDF: 7 pages
Proc. SPIE 8627, Integrated Optics: Devices, Materials, and Technologies XVII, 862710 (6 March 2013); doi: 10.1117/12.2002491
Show Author Affiliations
Mohamed A. Swillam, The American Univ. in Cairo (Egypt)
Charles Lin, Univ. of Toronto (Canada)
Amr S. Helmy, Univ. of Toronto (Canada)


Published in SPIE Proceedings Vol. 8627:
Integrated Optics: Devices, Materials, and Technologies XVII
Jean Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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