Hannes Lichte

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Hannes Lichte (born October 23, 1944 in Braunschweig ) is a German physicist who deals with electron optics .

Life

Lichte studied physics at the University of Kiel and the University of Tübingen , where he received his doctorate in 1977 under Gottfried Möllenstedt with the thesis A reflected light interference microscope for electron waves. He worked on the interference microscope there as early as 1970 as part of his diploma and doctoral theses. He then worked as a research assistant and from 1983 to 1989 as an academic adviser at the Institute for Applied Physics in Tübingen. His habilitation followed here in 1987.

In 1989 Lichte became professor for applied physics in Tübingen and in 1994 he accepted a professorship for physical measurement technology at the Institute for Applied Physics and Didactics of Physics at the Technical University of Dresden . There he set up the Triebenberg laboratory for high-resolution electron microscopy and electron holography.

Act

At Möllenstedt, Lichte developed electron holography in transmission electron microscopes . Lichte's development of an electron microscope interference microscope used the principle of a Michelson interferometer and was based on the electron-optical biprism developed by Möllenstedt and Heinrich Düker in 1954 and was able to make surface unevenness up to 0.1 nanometers visible and measure potential differences down to an order of magnitude of less than 1 mV . Before that, the electron microscope was clearly inferior to the light microscope in terms of depth resolution. In 1986, on New Year's Eve, he succeeded in recording the first electron hologram with atomic resolution.

In 1977 he received the Helmholtz Prize , in 1987 the Carus Medal and the Körber Prize for European Science (with Möllenstedt, Karl-Heinz Herrmann, Friedrich Lenz) and in 1989 the Ernst Ruska Prize. He is a member of the Leopoldina . In 2012 he was made an honorary member of the German Society for Electron Microscopy.

Fonts

  • with Michael Lehmann: Electron holography - basics and applications , Reports on Progress in Physics, Volume 71, 2008, No. 1.
  • with Heinz Niederig : Matter waves, electron optics , in Bergmann, Schaefer Textbook of Experimental Physics , Volume 3 (Optics), 9th edition, De Gruyter 1993.
  • An electron incident light interference microscope for the precision measurement of unevenness and potential differences on surfaces, PTB-Mitteilungen, Volume 89, 1979, p. 229
  • with D. Wolf, A. Lubk, H. Friedrich: Towards automated electron holographic tomography for 3D mapping of electrostatic potentials, Ultramicroscopy, Volume 110, 2010, pp. 390-399, PMID 20106597
  • with D. Wolf, A. Lubk, F. Röder: Electron holographic tomography, Current Opinion in Solid State and Materials Science, Volume 17, 2013, pp. 126-134

literature

  • Dorit Petschel : 175 years of TU Dresden. Volume 3: The professors of the TU Dresden 1828–2003. Edited on behalf of the Society of Friends and Supporters of the TU Dresden e. V. von Reiner Pommerin , Böhlau, Cologne a. a. 2003, ISBN 3-412-02503-8 , p. 554.

Web links

Individual evidence

  1. ^ Mathias Bäumel: Prof. Lichte honored . In: Dresdner Universitätsjournal , No. 6, 2012, p. 6 ( online as PDF; 2.6 MB).
personal data
SURNAME Lichte, Hannes
BRIEF DESCRIPTION German physicist
DATE OF BIRTH October 23, 1944
PLACE OF BIRTH Braunschweig