Cylindrical hybrid plasmonic waveguide for a nano-scale light confinement

Chao Liu; Mei Wang; Maojin Yun; Weijin Kong

doi:10.1117/12.2187404

28 August 2015 Cylindrical hybrid plasmonic waveguide for a nano-scale light confinement

Chao Liu, Mei Wang, Maojin Yun, Weijin Kong

Proceedings Volume 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII; 95472T (2015) https://doi.org/10.1117/12.2187404
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

Abstract

In order to improve integration density, it is essential to develop a nano-scale optical waveguide which is the key element to build varies of optical components. In this paper, a novel cylindrical hybrid plasmonic waveguide, which has an air core surrounded by a metal layer and a silicon layer, is proposed to achieve nano-scale confinement of light at the operating wavelength of 1550nm. And there is a low-index material nano-layer between the metal layer and the silicon layer, in which the field enhancement provides a nano-scale confinement of the optical field. The relations between the characteristics of the bound modes, including the effective mode indices, propagation lengths, mode sizes, mode shapes and parameters of the plasmonic waveguide are numerically investigated in detail. The simulation results show that the nano-scale confinement can be realized and the proposed hybrid plasmonic waveguide has a potential application in high density photonic integration. Keywords: Surface Plasmon, Mode confinement, Subwavelength structure

Citation Download Citation

Chao Liu, Mei Wang, Maojin Yun, and Weijin Kong "Cylindrical hybrid plasmonic waveguide for a nano-scale light confinement", Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 95472T (28 August 2015); https://doi.org/10.1117/12.2187404

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KEYWORDS

Plasmonic waveguides

Silica

Metals

Silicon

Photonics

Refractive index

Silver

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