Stefan Hell, Romanian-German physicist and chemist, Nobel Prize laureate

Stefan Walter Hell HonFRMS (German pronunciation: [ˈʃtɛfan ˈhɛl] (listen): born 23 December 1962) is a Romanian-German physicist and one of the directors of the Max Planck Institute for Biophysical Chemistry in Göttingen, Germany. He received the Nobel Prize in Chemistry in 2014 "for the development of super-resolved fluorescence microscopy", together with Eric Betzig and William Moerner.