Controlling light in different structures of dielectric-loaded plasmonic waveguide

We demonstrate how light can be controlled and guided in various dielectric-loaded plasmonic waveguides which consist of a dielectric nanowire suspended above a gold film. The different shapes of the dielectric nanowires on the gold film are characterized by means of the mode profile. Results show t...

Full description

Saved in:
Bibliographic Details
Main Authors: Hong-Son Chu, Wei-Bin Ewe, Ping Bai, Er-Ping Li
Format: Conference Proceeding
Language:English
Subjects:
Dielectrics
Filters
Geometry
Gold
Lighting control
Nanoscale devices
Optical films
Plasmonics
Plasmons
Refractive index
Shape
waveguide
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We demonstrate how light can be controlled and guided in various dielectric-loaded plasmonic waveguides which consist of a dielectric nanowire suspended above a gold film. The different shapes of the dielectric nanowires on the gold film are characterized by means of the mode profile. Results show that the shapes of nanowires play a significant role on the performance of the waveguides. In addition, the plasmonic wavelength selective device is also discussed which is based on hetero-surface plasmons in layered structures where a hetero-dielectric nanowire is loaded on a metallic film. Our proposed structures can efficiently route and filter the light where the selective wavelength can be tuned by different geometries or refractive indexes of the hetero-dielectric nanowires.
ISSN:2165-4727
2165-4743
DOI:10.1109/APMC.2009.5384167