Nikita Belko, PhD, is a MSCA YUFE postdoctoral researcher at the Department of Physics and Mathematics of University of Eastern Finland. He obtained his PhD degree in optics in 2021 from the Belarusian State University. His research is focused on the optical properties of nanodiamonds, carbon-based quantum dots, and other nanomaterials, the photophysics and photochemistry of organic dyes, and the development of fluorescent sensors.