Journal
OPTICS EXPRESS
Volume 24, Issue 15, Pages 16961-16972Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.24.016961
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Funding
- National Natural Science Foundation of China [41390453, 11504305, 11501481]
- Key Scientific Project of Fujian Province in China [2015H0039]
- Fundamental Research Funds for the Central Universities, Xiamen University [20720160104]
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The independent excitation and tuning of double plasmonic waves are realized in a free-standing graphene-spacer-grating-spacer-graphene (GSGSG) hybrid slab, which consists of two graphene field effect transistors placed back-to-back to each other. Resulted from the high transparency and the tight confinement of surface plasmonic mode for the graphene, double plasmonic waves can be independently excited by guided-mode resonances (GMRs). Theoretical and numerical investigations are performed in the mid-infrared band. Furthermore, the tuning of individual GMR resonant wavelengths with respect to the system parameters is studied. The results provide opportunities to engineer the proposed hybrid slab for wavelength selective and multiplexing applications. (C) 2016 Optical Society of America
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