Paulo A. Ribeiro is an associate professor of Department of Physics, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Portugal. He received a Ph.D. degree in Materials Sciences and Engineering from Universidade de São Paulo, Brazil. He has been a professor at the Department of Physics of NOVA School of Science and Technology, Universidade Nova de Lisboa, since 2000, where he has been dedicated to lecturing applied optics and photonics and organization of didactic sessions and expositions in the fields of optical sciences. In 2008, he was a funding member of the Functional Molecular Systems Research Group at the Centre of Physics and Technological Research of NOVA School of Science and Technology of Universidade Nova de Lisboa. Since 2021, he has integrated the Laboratory for Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys), where he is engaged in the development and characterization of thin films of organic functional molecules for applications in optics and photonics. His scientific interests in the field of Applied Physics are the production and characterization of functional molecular films of organic molecules with relevant properties for specific applications as in the areas of electronics, photonics, biosensors.