Stefan W. Hell

Stefan Walter Hell is a Romanian-German physicist and one of the directors of the Max Planck Institute for Multidisciplinary Sciences in Göttingen, and of the Max Planck Institute for Medical Research in Heidelberg, both of which are in 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.