The confinement and scattering lifetimes of graphene plasmons are improved when graphene is sandwiched between layers of thin hexagonal boron nitride. This finding should pave the way for nanophotonic applications in the low-loss regime.
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Caldwell, J., Novoselov, K. Mid-infrared nanophotonics. Nature Mater 14, 364–366 (2015). https://doi.org/10.1038/nmat4252
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DOI: https://doi.org/10.1038/nmat4252
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