Second-harmonic generation enhancement in monolayer transition-metal dichalcogenides by an epsilon-near-zero substrate

Pilar G. Vianna, Aline dos S. Almeida, Rodrigo M. Gerosa +2

Monolayer transition-metal dichalcogenides (TMDCs) present high second-order optical nonlinearity, which is extremely desirable for, e.g., frequency conversion in nonlinear photoni…