Photonic crystals for nano-light in moiré graphene superlattices
S. S. Sunku, G. X. Ni, B. Y. Jiang, H. Yoo, A. Sternbach, A. S. McLeod, T. Stauber, L. Xiong, T. Taniguchi, K. Watanabe, P. Kim, M. M. Fogler, D. N. Basov
(A and C) Nano-IR images obtained for λp = 135 nm and 282 nm. (B and D) Near-field amplitude and phase images calculated using the superposition model (introduced in the text). The model parameters used to obtain the images are (B) μ = 0.23 eV, Vi = 0.3 V, and η = 0.2 and (D) μ = 0.35 eV, Vi = 0.1 V, and η = 0.2. The dashed hexagons represent the boundaries of a single unit cell, and the magenta bars represent the SPP wavelengths.