Title :
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
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; SixGe1-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;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2013 13th IEEE Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-0675-8
DOI :
10.1109/NANO.2013.6720896
