Dr. Leone is a professor of Chemistry and Physics and John R. Thomas Endowed Chair in Physical Chemistry at University of California, Berkeley. He earned his Ph. D. in Physical Chemistry from University of California, Berkeley. He is a Fellow of American Physical Society, Optical Society of America,  American Association for the Advancement of Science, and the American Academy of Arts and Sciences. He is a recipient of American Chemical Society Peter Debye Award, 2005 and Polanyi Medal of the Gas Kinetics Division of the Royal Society of Chemistry, UK, 2010, and holds professorship in various institutes around the world. His research interests include ultrafast laser investigations and soft x-ray probing of valence and core levels, attosecond physics and chemistry, nanoparticle fluorescence intermittency, and aerosol chemistry and dynamics.