Analysis and Investigation of Slow Light Based on Plasmonic Induced Transparency in Metal-Dielectric-Metal Ring Resonator in a Waveguide System with Different Geometrical Designs

Mehdi Hassani Keleshtery,Hassan Kaatuzian,Ali Mir

doi:10.4236/opj.2016.68b029

Abstract

In this paper we will try to create, propose and analyze structure of a slow light device, based on plasmonic induced transparency in a metal-dielectric-metal based ring resonator. Group index by first design about 37 and second design about 35 earned. The proposed dielectric material is Poly Methyl Meta Acrylate (PMMA) sandwiched by gold metal cladding. Finite Element Method-con- ducted Electromagnetic simulations are employed to evaluate the plasmonic designs for behavior of slow light. The signal and pump wavelength are assumed to be 830 nm and 1550 nm respectively in the systems. The overall length of the plasmonic slow light system is 600 nm. In a wide range of frequency bands, the optical properties of metals can be described with a plasma model. The optical signal can be achieved with the use of surface waves on the boundary between the insulating materials and metals with dimensions smaller than the diffraction limit. The main goal, is estimation of optical characteristics such as bandwidth, the Real and Imaginary parts of refractive index, group velocity and slow down factor in such optical devices. The obtained results and observations, can be useful in basic research and the production of highly integrated plasmonic devices.

Highlights

In photonics technology, there’s an important sub-branch, called Plasmonics [1]-[5]
The resonators side coupled to the metal-dielectric-metal (MDM) waveguide are of special interests, since the Plasmon Induced Transparency (PIT) effect can be realized in plasmonic integrated circuits [19]
The change in the radius of the ring resonator, the electromagnetic wave in this element will have a direct impact on the response of slow light device [25] [26]

Summary

Introduction

There’s an important sub-branch, called Plasmonics [1]-[5]. Plasmonics, as an alterna-. (2016) Analysis and Investigation of Slow Light Based on Plasmonic Induced Transparency in Metal-Dielectric-Metal Ring Resonator in a Waveguide System with Different Geometrical Designs. Two designs have been proposed to display PIT in plasmonic nano-structures Among those designs, the resonators side coupled to the metal-dielectric-metal (MDM) waveguide are of special interests, since the PIT effect can be realized in plasmonic integrated circuits [19]. We’ve tried to design, simulate and analyze (1*1) and (1*2) MDM single ringresonators proposed slow light devices.

Analysis of Events in Plasmonic Resonators

Theory of Plasmonic Resonator System

Simulation Results in Two Different Geometrical Designs

Conclusions