Journal
OPTICS EXPRESS
Volume 21, Issue 14, Pages 17089-17096Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.017089
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Funding
- Major State Basic Research Development Program of China [2010CB328206]
- National Natural Science Foundation of China (NSFC) [61178008, 61275092]
- Fundamental Research Funds for the Central Universities, China
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We propose in this paper a dielectric-graphene-dielectric tunable infrared waveguide based on multilayer metamaterials with ultrahigh refractive indices. The waveguide modes with different orders are systematically analyzed with numerical simulations based on both multilayer structures and effective medium approach. The waveguide shows hyperbolic dispersion properties from mid-infrared to far-infrared wavelength, which means the modes with ultrahigh mode indices could be supported in the waveguide. Furthermore, the optical properties of the waveguide modes could be tuned by the biased voltages on graphene layers. The waveguide may have various promising applications in the quantum cascade lasers and bio-sensing. (C) 2013 Optical Society of America
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