Broadband sharp 90-degree bends and T-splitters in plasmonic coaxial waveguides

Document Type

Article

Publication Date

10-9-2013

Abstract

We demonstrate numerically that sharp 90 bends and T-splitters can be designed in plasmonic coaxial waveguides at deep-subwavelength scale to operate without reflection and radiation over a broad range of wavelengths, including the telecommunication wavelength of 1.55 μm. We explain the principles of the operation using a transmission line model of the waveguide in the quasi-static limit. The compact bends and T-splitters open up a new avenue for the design of densely integrated optical circuits with minimal crosstalk. © 2013 American Chemical Society.

Publication Source (Journal or Book title)

Nano Letters

First Page

4753

Last Page

4758

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