Symmetric hybrid surface plasmon polariton waveguides for 3D photonic integration

Document Type

Article

Publication Date

1-1-2009

Abstract

A two-dimensional symmetric hybrid plasmonic waveguide that integrates two high-refractive-index dielectric slabs with a finite-width insulator-metal- insulator (IMI) structure is proposed, and the characteristics of its long-range propagation mode are numerically analyzed at 1550 nm wavelength. In contrast to the previously studied structures, the gap between the slabs and the metal stripe and the associated field enhancement effect result in the dramatically modified modal behavior. It is shown that, under optimized configurations, the transmission loss can be reduced significantly with little change in the mode confinement capability compared to similar dielectric-loaded surface plasmon polariton waveguides. Studies on the crosstalk between adjacent such hybrid waveguides reveal the ability to increase the integration density by ∼60 times compared with the traditional IMI structures when used in 3D photonic circuits. The studied waveguide could be an interesting alternative to realize high density photonic circuits. © 2009 Optical Society of America.

Identifier

70749098333 (Scopus)

Publication Title

Optics Express

External Full Text Location

https://doi.org/10.1364/OE.17.021320

e-ISSN

10944087

PubMed ID

19997371

First Page

21320

Last Page

21325

Issue

23

Volume

17

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