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. 2016 May 5;6:25442. doi: 10.1038/srep25442

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2D map of the transmission coefficient of (a) hBN, (b) GhHC by effective medium theory and (c) GhHC by transfer matrix method as a function of wavenumber and incidence angle. Total thickness of both hBN and GhHC d = ~1 μm. In case of GhHC, thickness of graphene and hBN in the unit cell are d₁ = 1 nm and d₂ = 100 nm respectively, total number of unit cell, N = 10, chemical potential of graphene, μ_c = 0.4 eV and relaxation time, τ = 200 fs.