Journal
OPTICS EXPRESS
Volume 24, Issue 25, Pages 29217-29226Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.24.029216
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Funding
- Project of Discipline and Specialty Constructions of Colleges and Universities in the Education Department of Guangdong Province [2013CXZDA012]
- Guangdong Natural Science Foundation [2014A030313446]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT13064]
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We propose and numerically investigate a gate-controlled on-chip graphene metasurface consisting of a monolayer graphene sheet and silicon photonic crystal-like substrate, to achieve an electrically-tunable induced transparency. The operation mechanism of the induced transparency of the on-chip graphene metasurface is analyzed. The tunable optical properties with different gate-voltages and polarizations have been discussed. Additionally, the spectral feature of the on-chip graphene metasurface as a function of the refractive index of the local environment is also investigated. The result shows that the on-chip graphene metasurface as a refractive index sensor can achieve an overall figure of merit of 8.89 in infrared wavelength range. Our study suggests that the proposed structure is potentially attractive as optoelectronic modulators and refractive index sensors. (C) 2016 Optical Society of America
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