Title

Dielectric waveguide optimization for the enhancement of TE-polarisation transmission of plasmonics-based MSM-PD

Document Type

Journal Article

Publisher

St. Petersburg National Research University of Information Technologies, Mechanics and Optics.

Faculty

Faculty of Health, Engineering and Science

School

Electron Science Research Institute/Electron Science Research Institute

RAS ID

16711

Comments

This article was originally published as: Karar, A. , Tan, C., Alameh, K. , & Lee, Y. (2013). Dielectric waveguide optimization for the enhancement of TE-polarisation transmission of plasmonics-based MSM-PD. Nanosystems: Physics, Chemistry, Mathematics, 4(3), 378-386. Original article available here.

Abstract

In this paper, we use the finite difference time-domain (FDTD) method to optimize the TE-polarized light transmission of a metal-semiconductor-metal photodetector (MSM-PD) employing a dielectric waveguide on top of metal nano-gratings. Simulation results demonstrate that the funneling transmission of the TE-polarized light through the nanoslit of the MSM-PD structure is highly dependent on the structure geometries, such as the waveguide and nano-grating heights. We also demonstrate that adding a dielectric waveguide layer on top of the nano-metal gratings supports both the TM- and TE polarizations, and enhances the light transmission for TE-polarization around 3-times in comparison with conventional plasmonics MSMPD structures.

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