Videos about the research of Stefan Hell
STED – Insights into the nanoworld
Optical microscopes cannot distinguish between objects that are closer together than about 200 nanometers – about one two hundredth of a hair's breadth. The reason for this is the wave nature of light, the half wavelength of which roughly corresponds to those 200 nanometers. The STED microscopy developed by Stefan Hell is the first optical microscope technology to go beyond this magic barrier, enabling researchers to gain fascinating insights into the nanoworld.
Sharper than theory allows
Previously, the law formulated by Ernst Abbe in 1873 was regarded as the absolute lower limit. Objects lying closer to each other than 200 millionths of a millimetre, i.e. about one two hundredth of a hair's breadth, can no longer be distinguished from one another. The STED (Stimulated Emission Depletion) microscopy, which the physicist Stefan Hell from the Max Planck Institute for Biophysical Chemistry in Göttingen invented and developed to application readiness, allows scientists to gain insights into the nano world far beyond this limit. Biologists and physiologists in particular value this breakthrough, because living cells or tissue can only be observed using optical microscopes.
Videos of the Nobel Week in Stockholm
Nobel Lectures: 2014 Nobel Prize in Chemistry
The Nobel Prize in Chemistry – How the optical microscope became a nanoscope
The Nobel Prize Award Ceremony 2014
Watch the Nobel Prize Award Ceremony from the Stockholm Concert Hall in Sweden, 10 December 2014.
Nobel Banquet 2014 - Speech by Stefan W. Hell
Speech by Stefan W. Hell at the Nobel Banquet 2014.
Interview with Stefan W. Hell on December 6th, 2014
Stefan Hell describes his Nobel Prize awarded work in easy-to-understand terms.