Investigation of propagation properties of Surface Plasmon Polariton mode in AlGaAs/Ag/AlGaAs waveguide

Author

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

Author_Institution

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

fYear

2013

fDate

19-21 Dec. 2013

Firstpage

33

Lastpage

36

Abstract

Propagation properties of Surface Plasmon Polariton (SPP) mode in AlGaAs/Ag/AlGaAs waveguide are presented. A two dimensional finite-difference time-domain (FDTD) based algorithm has been developed in order to analyze the dynamics of the waveguide numerically. The SPP mode is excited through a monochromatic point source embedded in the AlGaAs layer. The SPP wavelength in the waveguide and penetration depth of SPP in Ag and AlGaAs layers have been calculated both analytically and numerically. An excellent agreement has been observed between the analytical and numerical results. The electric field strength at different distances from top AlGaAs/Ag interface is also analyzed and presented.

Keywords

III-V semiconductors; aluminium compounds; finite difference time-domain analysis; gallium arsenide; polaritons; semiconductor-metal boundaries; silver; surface plasmons; AlGaAs-Ag-AlGaAs; AlGaAs-Ag-AlGaAs waveguide; FDTD algorithm; SPP mode; electric field strength; monochromatic point source; penetration depth; propagation properties; surface plasmon polariton mode; two-dimensional finite-difference time-domain based algorithm; waveguide numerical dynamics; Dispersion; Electric fields; Electromagnetic waveguides; Mathematical model; Numerical models; Plasmons; Time-domain analysis; Surface plasmon polariton; finite-difference time-domain; nanophotonics; plasmonic waveguide;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Electrical Engineering (ICAEE), 2013 International Conference on

Conference_Location

Dhaka

Print_ISBN

978-1-4799-2463-9

Type

conf

DOI

10.1109/ICAEE.2013.6750300

Filename

6750300