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

Das, Narottam K; Karar, Ayman; Tan, C L; Vasiliev, Mikhail; Alameh, Kamal; Lee, Yong Tak

oai:ro.ecu.edu.au:ecuworks2011-1165

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

Authors: Narottam K Das
Ayman Karar
C L Tan
Mikhail Vasiliev
Kamal Alameh
Yong Tak Lee
Publication date: 1 January 2011
Publisher: Edith Cowan University, Research Online, Perth, Western Australia
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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

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Last time updated on 16/06/2016

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