Rigorous Full-Vectorial Solutions of Photonics Nanowires

Author

Leung, David M H ; Rahman, B. M Azizur ; Kejalakshmy, Namassivayane ; Grattan, Kenneth T V

Author_Institution

Sch. of Eng. & Math. Sci., City Univ. London, London, UK

Volume

17

Issue

4

fYear

2011

Firstpage

952

Lastpage

959

Abstract

The full-vectorial H and E-fields and Poynting vector profiles are calculated by using a rigorous full-vectorial formulation for silicon and gold nanowires. This paper reveals that the mode profiles of both circular silicon and gold nanowires are not circular, due to strong index contrast at the core-cladding interfaces. The modes are highly hybrid with all the six components of the electric, and magnetic fields being present along with a strong axial field component. From the analyses, the characteristics of single-mode operation and the vector field profiles of both circular and planar silicon nanowires are presented. The modal properties of zinc-oxide-coated gold nanowires are also presented in this paper.

Keywords

II-VI semiconductors; gold; nanophotonics; nanowires; semiconductor quantum wires; silicon; wide band gap semiconductors; zinc compounds; Au; E-fields; H-fields; Poynting vector profiles; Si; ZnO; axial field component; core-cladding interfaces; full-vectorial solutions; index contrast; photonics nanowires; silicon nanowires; single-mode operation; zinc-oxide-coated gold nanowires; Dispersion; Indexes; Magnetic cores; Nanowires; Optical variables control; Optical waveguides; Silicon; Finite element method (FEM); modal solutions; nanowires; optical waveguides;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2010.2089973

Filename

5677571