Optimization of debye parameters for dielectric materials and investigation of symmetric SPP mode propagation properties in DMD waveguide

Author

Saber, Md Ghulam ; Sagor, Rakibul Hasan ; Al Noor, Asif ; Al-Amin, Md Thesun

Author_Institution

Dept. of Electr. & Electron. Eng., Islamic Univ. of Technol., Gazipur, Bangladesh

fYear

2013

fDate

5-8 Aug. 2013

Firstpage

262

Lastpage

265

Abstract

The Modified Debye Model (MDM) parameters for Cuprous Oxide (Cu₂O) and Silicon-Germanium Alloy (1.5:1) are presented. A nonlinear optimization algorithm has been developed in order to optimize the parameters for the materials. The obtained parameters have been used to determine the complex relative permittivity, which show an excellent agreement with the experimental values. The root-mean-square (RMS) deviations are found to be as little as 0.1638 and 0.3710 respectively. Finally symmetric Surface Plasmon Polariton (SPP) mode propagation properties in a Dielectric-Metal-Dielectric (DMD) waveguide constructed with silver (Ag) and Cu₂O have been studied both analytically and numerically for further verification of the obtained MDM parameters.

Keywords

Ge-Si alloys; copper compounds; dielectric waveguides; finite difference time-domain analysis; optimisation; permittivity; polaritons; silver; surface plasmons; Cu₂O-Ag-Cu₂O; Si_xGe_1-x; complex relative permittivity; dielectric materials; dielectric-metal-dielectric waveguide; modified Debye model parameters; nonlinear optimization algorithm; numerical analysis; root-mean-square deviations; symmetric surface plasmon polariton mode propagation; Dielectric materials; Electric fields; Mathematical model; Metals; Numerical models; Permittivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology (IEEE-NANO), 2013 13th IEEE Conference on

Conference_Location

Beijing

ISSN

1944-9399

Print_ISBN

978-1-4799-0675-8

Type

conf

DOI

10.1109/NANO.2013.6720896

Filename

6720896