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

Sensors

Hua-Jun Chen¹ 

关键词: graphene nanoresonator;    optical transistor;    nonlinear optical spectroscopy;    mass sensing;   

DOI  :  10.3390/s140916740

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.