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(a) is the sketch of the asymmetrical graphene stripe pattern. (b–d) The transmission, reflection, absorption resonant curves versus frequency, respectively. The Fermi levels were 0.1, 0.5, and 1.0 eV, respectively. The asymmetrical degree δ was δ = L2 − L1. The stripe length and width were 96 μm and 8 μm, respectively. The periodic lengths along x and y directions were both 108 μm.
