Prof. Ado Jorio: Professor of Physics at the Federal University of Minas Gerais (UFMG), works with research and development of scientific instrumentation in optics for the study of nanostructures with applications in new materials and biomedicine. He earned a doctoral degree in physics from the same institution in 1999, working with phase transitions in incommensurate systems, followed by a postdoctoral fellowship at the Massachusetts Institute of Technology (MIT), Cambridge, USA (2000-2001), working with optical properties of nanomaterials, focusing on Raman spectroscopy and optical properties of carbon nanomaterials. Prof. Jorio is a member of the The World Academy of Sciences, the Brazilian Academy of Sciences, the National Order of Scientific Merit (Comendador class) and he received the "membership award to the American Chemical Society". In 2016 he was included in the list of "Highly Cited Researchers" of Thomson Reuters. He received several awards for his scientific contributions, including the Inconfidência Medal of the State of Minas Gerais Government in 2016, the Somiya Award from the International Union of Materials Research Societies in 2009, Elsevier & CAPES 2009 Scopus Brazil Award, the International Center for Theoretical Physics Prize in 2012, and the Georg Forster Research Award from the Humboldt Foundation in 2015. He held the positions of Coordinator of Strategic Studies and Information at the Brazilian Institute of Metrology (2008-2009), Director of Technological Transfer and Innovation (2010-2012), head of the Physics Department (2015-2016) and Dean of Research (2016-2018) at UFMG.

Nano-Raman Spectroscopy in Two-Dimensional Systems

Abstract:
The advance of nanoscience and nanotechnology is bound to our ability to access the properties of materials in the atomic and molecular scales. In this talk, I will discuss the development of nano-Raman spectroscopy as a powerful tool to study materials with nanoscale resolution, and its applications in two-dimensional systems, including graphene and transition metal dichalcogenides. To achieve nano-optics, it is necessary to overcome the light diffraction limit, and this is achieved here using tip-enhanced Raman spectroscopy (TERS). The success of TERS is related to the development of plasmonic nano-antennas that generate strong enough fields to excite and absorb the light scattered from mesoscopic structures, unrevealing phenomena that can only be observed in the nanometer regime.