Wilfried Schäfer

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Wilfried Schäfer (born September 5, 1951 in Schwerte ; † August 7, 2003 ) was a German physicist in the field of theoretical semiconductor optics .

biography

Wilfried Schäfer studied physics at the University of Dortmund , received his doctorate there in 1980 and qualified as a professor in 1988 for theoretical physics with a thesis on highly excited semiconductors . In 1988 he moved to Forschungszentrum Jülich as a research assistant . He stayed several times for research stays in the USA . a. at Bell Laboratories in Murray Hill , New Jersey . His work on the description of Coulomb correlations and on the electron - phonon interaction in semiconductors on the basis of non-equilibrium Green functions is still considered to be pioneering today. He set new standards with his numerical simulations of many-particle effects. Schäfer has also been a professor at the University of Dortmund since 1996.

Works (selection)

  • Wilfried Schäfer, S. Schmitt-Rink and C. Stafford: The Hague '90, April 12-16. 1990, pp. 24-34, doi: 10.1117 / 12.20640 .
  • C. Stafford, S. Schmitt-Rink and Wilfried Schäfer: Nonlinear optical response of two-dimensional magnetoexcitons. In:  Physical review. B, condensed matter. Volume 41, 1990, pp. 10000-10011. doi: 10.1103 / PhysRevB.41.10000 .
  • D. Kim, J. Shah, J Cunningham, TC Damen, S. Schmitt-Rink and Wilfried Schäfer: Carrier-carrier scattering in a degenerate electron system: Strong inhibition of scattering near the Fermi edge. In:  Physical review letters. Volume 68, 1992, pp. 2838-2841, doi: 10.1103 / PhysRevLett.68.2838 .
  • Wilfried Schäfer, I. Brener and W. Know: Many Body Effects at the fermi Edge of modulati doped semiconductors: a numerical study. In: RT Philips: Coherent Optical Interactions in Semiconductors. Cambridge 1993.
  • Wilfried Schäfer, F. Jahnke and S. Schmitt-Rink: Many-particle effects on transient four-wave-mixing signals in semiconductors. In:  Physical review. B, condensed matter. Volume 47, 1993, pp. 1217-1220, doi: 10.1103 / PhysRevB.47.1217 .
  • Wilfried Schäfer et al .: Polarization dependence of dephasing processes: A probe for many-body effects. In:  Physical review B, Condensed matter. Volume 49, No. 15, May 1994, pp. 10774-10777.
  • Wilfried Schäfer and Martin Wegener: Semiconductor Optics and Transport Phenomena. Springer, Berlin [a. a.] 2002, ISBN 3-540-61614-4

Individual evidence

  1. ^ Frank Jahnke, Joachim Treusch , Martin Wegener : Obituary for Wilfried Schäfer. (PDF; 46.4 KB) pro-physik.de, accessed on July 11, 2019 .
  2. ^ M. Bonitz: In memoriam: Wilfried Schäfer. In: Journal of Physics: Conf. Series 35, i (2006). Institute of Physics Publishing, accessed July 10, 2019 .
personal data
SURNAME Shepherd, Wilfried
BRIEF DESCRIPTION German physicist and university professor
DATE OF BIRTH 5th September 1951
PLACE OF BIRTH Swords
DATE OF DEATH August 7, 2003