Observing light-induced Floquet band gaps in the longitudinal conductivity of graphene

Abstract

Subjecting materials to strong, carefully tuned light pulses are an increasingly popular route to realise novel physics and functionalities for solid-state systems, with one such example being Floquet engineering. Here, the authors propose to employ optical longitudinal conductivity to probe Floquet-Bloch bands, and demonstrate optical controllability of the conductivity of graphene.