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Nonlinear optical properties of graphene

Grant number: 17/16151-9
Support type:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): September 01, 2017
Effective date (End): June 30, 2019
Field of knowledge:Engineering - Electrical Engineering
Principal Investigator:Hugo Luis Fragnito
Grantee:Daniel Felipe Londono Giraldo
Home Institution: Centro de Pesquisas Avançadas em Grafeno, Nanomateriais e Nanotecnologia (MackGrafe). Universidade Presbiteriana Mackenzie (UPM). Instituto Presbiteriano Mackenzie. São Paulo, SP, Brazil
Associated research grant:12/50259-8 - Graphene: photonics and opto-electronics: UPM-NUS collaboration, AP.SPEC

Abstract

The selected student will study experimentally and theoretically the nonlinear optical properties of pure and functionalized graphene, participating in scientific collaborations with other groups in this project, including groups abroad. The nonlinearities to study are saturable absorption and wave mixing, the student will use the techniques of pump & probe and laser induced gratings, aiming at understanding how the nonlinearities depend on the number of graphene layers and several dopants. In the theoretical part, the student will collaborate with other group members in modeling the physical mechanisms that give origin to the nonlinearities, and will include computing simulations. Within the collaborations, the student should perform one or two stays in the Singapore Graphene Center. (AU)