Low-loss silicon-based hybrid plasmonic waveguide with an air nanotrench for sub-wavelength mode confinement

Document Type

Article

Publication Date

8-1-2011

Abstract

A hybrid plasmonic waveguide based on a silicon-on-insulator substrate with an air trench is proposed and investigated. Theoretical analysis demonstrates that the nano-scale air trench could result in strong local field enhancement and tight mode confinement. Besides, the transmission loss of the fundamental hybrid plasmonic mode could also be reduced despite the existence of the high-index silicon rib. The proposed structure is compatible with standard nanofabrication process based on the silicon wafers and could enable various nanophotonic integrated components. © 2011 The Institution of Engineering and Technology.

Identifier

80052736374 (Scopus)

Publication Title

Micro and Nano Letters

External Full Text Location

https://doi.org/10.1049/mnl.2011.0298

e-ISSN

17500443

First Page

643

Last Page

645

Issue

8

Volume

6

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