"Nobel Prize in Chemistry" Stefan Hell Signed 4X5.5 Color Photo Todd Mueller COA

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Up for auction the
"Nobel Prize in Chemistry"  Hand Signed 4X5.5 Color Photo.
This item is certified authentic by
Todd Mueller Autographs
and comes with their Certificate of Authenticity.
ES-7547E
Stefan Walter Hell
HonFRMS
(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
.
Born into a
Banat Swabian
family in
Arad
,
Romania
, 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 6 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).