Stefan Hell
Stefan Walter Hell HonFRMS (German pronunciation: [ˈʃtɛfan ˈhɛl] : 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.
Stefan Walter Hell HonFRMS (German pronunciation: [ˈʃtɛfan ˈhɛl] : 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.

Life
Born into a Roman Catholic Banat Swabian family in Arad, Romania, which was part of the Kingdom of Hungary until 1920 and where Swabians (Catholic Germans in Hungary) still constituted the third largest ethnicity, ca 7 % of the population in 1910. He is the second fully Swabian Nobel prize winner with Herta Müller. He grew up at his parents' home in nearby Sântana. Hell attended primary school there between 1969 and 1977. Subsequently, he attended one year of secondary education at the Nikolaus Lenau High School in Timișoara before leaving with his parents to West Germany in 1978. His father was an engineer and his mother a teacher; the family settled in Ludwigshafen after emigrating.Hell began his studies at the Heidelberg University in 1981, where he received his doctorate in physics in 1990. His thesis advisor was the solid-state physicist Siegfried Hunklinger. The title of the thesis was “Imaging of transparent microstructures in a confocal microscope”. He was an independent inventor for a short period thereafter working on improving depth (axial) resolution in confocal microscopy, which became later known as the 4Pi microscope. Resolution is the possibility to separate two similar objects in close proximity and is therefore the most important property of a microscope.
From 1991 to 1993, Hell worked at the European Molecular Biology Laboratory in Heidelberg, where he succeeded in demonstrating the principles of 4-Pi microscopy. From 1993 to 1996 he worked as a group leader at the University of Turku (Finland) in the department for Medical Physics, where he developed the principle for stimulated emission depletion STED microscopy. From 1993 to 1994 Hell was also for six months a visiting scientist at the University of Oxford (England).
He received his habilitation in physics from the University of Heidelberg in 1996. On 15 October 2002, Hell became a director of the Max Planck Institute for Biophysical Chemistry in Göttingen  and he established the department of Nanobiophotonics. Since 2003 Hell has also been the leader of the department "Optical Nanoscopy division" at the German Cancer Research Center (DKFZ) in Heidelberg and "non-budgeted professor" (apl. Prof.) in the Heidelberg University Faculty of Physics and Astronomy. Since 2004 he has been an honorary professor for experimental physics at the faculty of physics of the University of Göttingen.With the invention and subsequent development of Stimulated Emission Depletion microscopy and related microscopy methods, he was able to show that one can substantially improve the resolving power of the fluorescence microscope, previously limited to half the wavelength of the employed light (> 200 nanometers). A microscope's resolution is its most important property. Hell was the first to demonstrate, both theoretically and experimentally, how one can decouple the resolution of the fluorescence microscope from diffraction and increase it to a fraction of the wavelength of light (to the nanometer scale). Ever since the work of Ernst Karl Abbe in 1873, this feat was not thought possible. For this achievement and its significance for other fields of science, such as the life-sciences and medical research, he received the 10th German Innovation Award (Deutscher Zukunftspreis) on 23 November 2006. He received the Nobel Prize in Chemistry in 2014, becoming the second Nobelist born in the Banat Swabian community (after Herta Müller, the 2009 recipient of the Nobel Prize in Literature).As of 2021, Hell has an h-index of 132 according to Google Scholar.

Awards
Prize of the International Commission for Optics, 2000
Helmholtz-Award for metrology, Co-recipient, 2001
Berthold Leibinger Innovationspreis, 2002
Carl-Zeiss Research Award, 2002
Karl-Heinz-Beckurts-award, 2002
C. Benz u. G. Daimler-Award of Berlin-Brandenburgisch academy, 2004
Robert B. Woodward Scholar, Harvard University, Cambridge, MA, USA, 2006
Innovation Award of the German Federal President, 2006
Julius Springer Prize for Applied Physics, 2007
Member of the Akademie der Wissenschaften zu Göttingen, 2007
Gottfried Wilhelm Leibniz Prize, 2008
Lower Saxony State Prize, 2008
Nomination for European Inventor of the Year of the European Patent Office, 2008
Method of the year 2008 in Nature Methods
Otto-Hahn-Preis, 2009
Ernst-Hellmut-Vits-Prize, 2010
Hansen Family Award, 2011
Körber European Science Prize, 2011
The Gothenburg Lise Meitner prize, 2010/11
Meyenburg Prize, 2011
Science Prize of the Fritz Behrens Foundation 2012
Doctor Honoris Causa of Vasile Goldiș Western University of Arad, 2012
Romanian Academy, Honorary Member, 2012
Paul Karrer Gold Medal, University of Zürich, 2013
Member of German National Academy of Sciences Leopoldina, 2013
Carus Medal of the Leopoldina, 2013
Kavli Prize, 2014
Nobel Prize in Chemistry, 2014
Romanian Royal Family: Knight Commander of the Order of the Crown, 2015
Romania: Grand Cross of the Order of the Star of Romania, 2015
Glenn T. Seaborg Medal, 2015
Wilhelm Exner Medal, 2016
Foreign associate of the National Academy of Sciences, 2016
Honorary Fellow of the Royal Microscopical Society (HonFRMS) for his contributions to microscopy, 2017
Fellow of the Norwegian Academy of Science and Letters.
Pour le Mérite, 2022

Publications
Balzarotti, F.; Eilers, Y.; Gwosch, K.; Gynnå, A. H.; Westphal, V.; Stefani, F. D.; Elf, J.; Hell, S. W. (2017). "Nanometer resolution imaging and tracking of fluorescent molecules with minimal photon fluxes". Science. 355 (6325): 606–612. arXiv:1611.03401. Bibcode:2017Sci...355..606B. doi:10.1126/science.aak9913. PMID 28008086. S2CID 5418707.
Butkevich, A.; Mitronova, G.; Sidenstein, S.; Klocke, J.; Kamin, D.; Meineke, D. N. H.; D'Este, E.; Kraemer, P. T.; Danzl, J. G.; Belov, V. N.; et al. (2016). "Fluorescent rhodamines and fluorogenic carbopyronines for super-resolution STED microscopy in living cells". Angewandte Chemie International Edition. 55 (10): 3290–3294. doi:10.1002/anie.201511018. PMC 4770443. PMID 26844929.

References
External links

Chemistry Tree: Stefan W. Hell Details
Curriculum vitae on the Website of Max Planck Institute for Biophysical Chemistry
Stefan Hell Lecture: Super-Resolution: Overview and Stimulated Emission Depletion (STED) Microscopy, May 2013
Innovation Award of the German Federal President
List of articles from Steffan Hell
Stefan Hell on Nobelprize.org