Mr. Papadakis Ioannis is a 1st year Ph.D candidate at Physics Departments at the University of Patras. He received his Bachelor degree from the University of Patras in 2015 and his Master degree from the University of Patras in Photonics – Lasers. His Master thesis is titled: “Nonlinear optical response of graphene and graphene derivatives”. His research focuses on the nonlinear optical response of graphenes, nanoribbons and other carbon based nanomaterials.