Electrically Tunable Nonequilibrium Optical Response of Graphene
Eva A. A. Pogna, Andrea Tomadin, Osman Balcı, Giancarlo Soavi, Ioannis Paradisanos, Michele Guizzardi, Paolo Pedrinazzi, Sandro Mignuzzi, Klaas‐Jan Tielrooij, Marco Polini, Andrea C. Ferrari, Giulio Cerullo
Abstract
exceeding the Pauli blocking threshold, photobleaching eventually turns into photoinduced absorption, because the hot electrons' excitation increases the SLG absorption. The ability to control both recovery time and sign of the nonequilibrium optical response by electrostatic gating makes SLG ideal for tunable saturable absorbers with controlled dynamics.
Topics & Concepts
GrapheneMaterials scienceNon-equilibrium thermodynamicsNanotechnologyOptoelectronicsPhysicsQuantum mechanicsGraphene research and applicationsAdvanced Memory and Neural ComputingMechanical and Optical Resonators