Metal-semiconductor-metal (MSM) photodetectors with plasmonic nanogratings

Das, Narottam; Karar, A.; Tan, C.; Vasiliev, M.; Alameh, K.; Lee, Y.

doi:10.1351/PAC-CON-11-01-13

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Authors

Das, Narottam

Karar, A.

Tan, C.

Vasiliev, M.

Alameh, K.

Lee, Y.

Date

2011

Type

Journal Article

Metadata

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Citation

Das, N. and Karar, A. and Tan, C. and Vasiliev, M. and Alameh, K. and Lee, Y. 2011. Metal-semiconductor-metal (MSM) photodetectors with plasmonic nanogratings. Pure and Applied Chemistry. 83 (11): pp. 2107-2113.

Source Title

Pure and Applied Chemistry

DOI

10.1351/PAC-CON-11-01-13

ISSN

0033-4545

School

Department of Electrical and Computer Engineering

URI

http://hdl.handle.net/20.500.11937/56212

Collection

Curtin Research Publications

Abstract

We discuss the light absorption enhancement factor dependence on the design of nanogratings inscribed into metal-semiconductor-metal photodetector (MSM-PD) structures. These devices are optimized geometrically, leading to light absorption improvement through plasmon-assisted effects. Finite-difference time-domain (FDTD) simulation results show ~50 times light absorption enhancement for 850 nm light due to improved optical signal propagation through the nanogratings. Also, we show that the light absorption enhancement is strongly dependent on the nanograting shapes in MSM-PDs. © 2011 IUPAC.