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Sensors 2014, 14(9), 16740-16753; doi:10.3390/s140916740

Graphene-Based Nanoresonator with Applications in Optical Transistor and Mass Sensing

Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
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Received: 1 July 2014 / Revised: 26 August 2014 / Accepted: 4 September 2014 / Published: 9 September 2014
(This article belongs to the Special Issue On-Chip Sensors)
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Abstract

Graphene has received significant attention due to its excellent properties currently. In this work, a nano-optomechanical system based on a doubly-clamped Z-shaped graphene nanoribbon (GNR) with an optical pump-probe scheme is proposed. We theoretically demonstrate the phenomenon of phonon-induced transparency and show an optical transistor in the system. In addition, the significantly enhanced nonlinear effect of the probe laser is also investigated, and we further put forward a nonlinear optical mass sensing that may be immune to detection noises. Molecules, such as NH3 and NO2, can be identified via using the nonlinear optical spectroscopy, which may be applied to environmental pollutant monitoring and trace chemical detection. View Full-Text
Keywords: graphene nanoresonator; optical transistor; nonlinear optical spectroscopy; mass sensing graphene nanoresonator; optical transistor; nonlinear optical spectroscopy; mass sensing
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Chen, H.-J.; Zhu, K.-D. Graphene-Based Nanoresonator with Applications in Optical Transistor and Mass Sensing. Sensors 2014, 14, 16740-16753.

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