Aleksandar J. Krmpot received the Ph.D. degree in quantum optics from the University of Belgrade, Serbia, in 2010. He is a Research Associate at the Institute of Physics, University of Belgrade. During M.Sc. and Ph.D studies, he was investigating the evolution of the coherently prepared atoms traversing different laser beams profiles. His main research activities are quantum optics and biophotonics. His current research activities are development and application of nonlinear microscopy for biohotonics structures studies in Institute of physics, Belgrade, Serbia and multifocal correlation microscopy for studies of molecular diffusion dynamics at Karolinska Institute, Stockholm, Sweden.