MSM photodetectors with plasmonic nano-gratings

Authors

Narottam Das, Edith Cowan University
Ayman Karar, Edith Cowan University
Chee Leong Tan
Mikhail Vasiliev, Edith Cowan UniversityFollow
Kamal Alameh, Edith Cowan UniversityFollow
Yong Tak Lee

Document Type

Conference Proceeding

Publisher

Macmillan Publishers India Ltd.

Faculty

Faculty of Computing, Health and Science

School

Electron Science Research Institute (ESRI)

RAS ID

10322

Comments

Das, N. K., Karar, A. , Tan, C., Vasiliev, M. , Alameh, K. , & Lee, Y. T. (2010). MSM Photodetectors with Plasmonic Nano-Gratings. Proceedings of International Conference on Nanomaterials and Nanotechnology (NANO 2010). (pp. 377-382). India. Macmillan Publishers India Ltd. Original conference available here

Abstract

We discuss the light absorption enhancement dependence on the design of nano-gratings inscribed into metal-semiconductor-metal photodetector (MSM-PD) structures. Optimal nano-grating design leads to light absorption improvement through plasmon-assisted effects. Finite difference time-domain simulation results show ~50 times light absorption enhancement at 850 nm due to improved optical signal propagation through the nano-gratings. Also, we show that the light absorption enhancement is strongly dependent on the nano-grating shapes.