High performance terahertz anisotropic absorption in graphene

High performance terahertz anisotropic absorption in graphene–black phosphorus heterostructure

Liang Jinming^{1, 2}, Lei Jiangtao², Wang Yun², Ding Yan², Shen Yun^{1, 2, †}, Deng Xiaohua^{2, ‡}

Absorption spectra when nanoribbons along armchair and ziagzag directions. The distance between the graphene nanoribbons and the BP nanoribbons varies from t = 0 to 20 nm (a)–(d). Schematic of the cross section of the proposed structure is shown in the inset of (a). The insets are the side view electric field profile of the vertical component E_z at the resonance frequency for nanoribbons along armchair direction (the black rectangle is the inserting dielectric layer).