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Ultrafast Spectroscopy

  1. Oliver Kühn,
  2. Stefan Lochbrunner

Published Online: 15 DEC 2009

DOI: 10.1002/3527600434.eap545.pub3

Encyclopedia of Applied Physics

Encyclopedia of Applied Physics

How to Cite

Kühn, O. and Lochbrunner, S. 2009. Ultrafast Spectroscopy. Encyclopedia of Applied Physics. 769–815.

Author Information

  1. Universität Rostock, Institut für Physik, Rostock, Germany

Publication History

  1. Published Online: 15 DEC 2009


This chapter introduces the concepts, theoretical approaches, and experimental techniques of ultrafast spectroscopy. By pushing the time resolution to a few femtoseconds the observation of atomic and molecular motions in real time becomes possible. This is illustrated by means of applications including molecular dynamics from isolated diatomics via clusters to biomolecules as well as processes in semiconductors and at surfaces. Perspectives are given on the emerging fields of attosecond physics and time-resolved diffraction techniques.


  • ultrafast processes;
  • wave packets;
  • pump-probe spectroscopy