期刊
SENSORS
卷 14, 期 9, 页码 16740-16753出版社
MDPI
DOI: 10.3390/s140916740
关键词
graphene nanoresonator; optical transistor; nonlinear optical spectroscopy; mass sensing
资金
- National Natural Science Foundation of China [10974133, 11274230]
- National Basic Research Program of the Ministry of Science and Technology of China
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.
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