Open AccessModeling and design methodology for metal-insulator-metal plasmonic Bragg reflectors
Author(s) -
Amir Hosseini,
Hamid Reza Nejati,
Yehia Massoud
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.001475
Subject(s) - finite difference time domain method , materials science , optics , plasmon , impedance matching , dielectric , transmission line , electrical impedance , transfer matrix method (optics) , reflection (computer programming) , classification of discontinuities , insulator (electricity) , optoelectronics , physics , computer science , telecommunications , mathematical analysis , mathematics , quantum mechanics , programming language
In this paper, we present a modeling and design methodology based on characteristic impedance for plasmonic waveguides with Metal-Insulator-Metal (MIM) configuration. Finite-Difference Time-Domain (FDTD) simulations indicate that the impedance matching results in negligible reflection at discontinuities in MIM heterostructures. Leveraging the MIM impedance model, we present a general Transfer Matrix Method model for MIM Bragg reflectors and validate our model against FDTD simulations. We show that both periodically stacked dielectric layers of different thickness or different material can achieve the same performance in terms of propagation loss and minimum transmission at the central bandgap frequency in the case of a finite number of periods.