Tunable localized surface plasmon resonances in one-dimensional h-BN/graphene/h-BN quantum-well structure

Zhang Kaibiao^{1, 2}, Zhang Hong^{1, 3, 4, †,}, Cheng Xinlu¹

(a) Absorption spectra of a series of (BN)_n/C_m/(BN)_n quantum-well structures with fixed zigzag C chains (m = 6) and variable BN zigzag chains (n = 1, 2, 4, 6). (b) Energy-dependent field enhancement of graphene flakes in (BN)_n/C_m/(BN)_n. For comparison, the absorption spectrum and field enhancement (inset) of isolate graphene (C₆) are also displayed.