Title :
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
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;
Conference_Titel :
Advances in Electrical Engineering (ICAEE), 2013 International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4799-2463-9
DOI :
10.1109/ICAEE.2013.6750300
