2-7 June 2019
Simon Fraser University
America/Vancouver timezone
Welcome to the 2019 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2019 !

4 - Plasmonic All-Optical Switching by Metamaterial-Dielectric Mach-Zehnder Interferometer

4 Jun 2019, 16:51
2m
SWH 9082 + AQ South-East Corner / coin sud-est (Simon Fraser University)

SWH 9082 + AQ South-East Corner / coin sud-est

Simon Fraser University

Poster (Non-Student) / Affiche (Non-étudiant(e)) Applied Physics and Instrumentation / Physique appliquée et de l'instrumentation (DAPI / DPAI) DAPI Poster Session & Student Poster Competition Finals (8) | Session d'affiches DPIA et finales du concours d'affiches étudiantes (8)

Speaker

Dr Nafiseh Sang-Nourpour (Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, Canada)

Description

We present a nanoscale low-power all-optical switching approach based on surface-plasmon polaritons (SPPs) by employing the concept behind Mach-Zehnder interferometer (MZI). The capabilities of SPPs to confine energy of electromagnetic waves in the subwavelength scale provide the possibility to design miniaturized all-optical switches. We employ nanoscale plasmonic waveguides in MZI and add a pump to the structure to provide on/off states in the all-optical switch. The waveguide cladding is made of lossy media including metamaterials, with positive and negative electromagnetic susceptibilities, and metals and the core consists of dielectrics and nonlinear media. By turning the pump on or off, the pump energy affects the Kerr nonlinear material in the waveguide core at one of the interferometer branches that provides constructive or destructive interferences between propagating SPPs in the up and down branches of the interferometer. Employing metamaterials, instead of commonly used metals, in the switch structure facilitates the propagation of both transverse electric and transverse magnetic SPPs along the waveguides, which enables on/off states for both transverse electric and transverse magnetic modes in the switch. Our all-optical switch design enables multi-frequency switching with low-intensity pump field. Ascertaining the capabilities of multi-frequency plasmonic all-optical switches facilities their applications in miniaturized photonic circuits.

Primary authors

Ms Fariba Lotfi (Photonics group, Research Institute for Applied Physics and Astronomy, University of Tabriz, Iran) Dr Nafiseh Sang-Nourpour (Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, Canada) Dr Reza Kheradmand ( Photonics group, Research Institute for Applied Physics and Astronomy, University of Tabriz, Iran)

Presentation Materials

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