Document Type

Conference Proceeding

Publisher

IEEE

Faculty

Computing, Health and Science

School

Electron Science Research Institute (ESRI), School of Engineering

RAS ID

10301

Comments

This article was originally published as: Tan, C., Lysak, V., Das, N. K., Karar, A. , Alameh, K. , & Lee, Y. T. (2010). Absorption Enhancement of MSM Photodetector Structure with a Plasmonic Double Grating Structure. Proceedings of IEEE NANO 2010 10th International Conference on Nanotechnology. (pp. 849-853). . Seoul, Korea. IEEE. Original article available here

Abstract

We present finite difference time domain simulation to analyze the optical absorption enhancement of metal-semiconductor-metal photo detectors employing double plasmonic grating structures. Simulation results show that the combination of a subwavelength aperture and double nano-structured metal grating results in up to 25 times enhancement in optical absorption, in comparison to MSM photodetector structures employing only a subwavelength aperture. This improvement of the absorption enhancement is due to the coupling out function of the bottom grating structure which distributes the light to both side of the subwavelength aperture.

DOI

10.1109/NANO.2010.5697989

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Link to publisher version (DOI)

10.1109/NANO.2010.5697989