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Terahertz nonlinear optics of excitons in semiconductor quantum wells

Wagner, M.; Stehr, D.; Schneider, H.; Winnerl, S.; Helm, M.

Abstract

We report the investigation of two nonlinear optical phenomena which are related to intra-excitonic transitions in semiconductor quantum wells and thus occur in the THz range. This is, on one hand, the generation of THz sidebands of near-band gap radiation, a perturbative process, and on the other hand, the AC Stark effect manifested by the Autler-Townes splitting as a non-perturbative effect. Both phenomena are induced by the strong THz field of the Dresden THz free-electron laser.

Keywords: AC Stark effect; Autler Townes effect; excitons; terahertz; sideband generation; nonlinear optics

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Related publications

  • Invited lecture (Conferences)
    20th International Conference on Applied Electromagnetics and Communications, 20.-23.09.2010, Dubrovnik, Kroatien
  • Contribution to proceedings
    20th International Conference on Applied Electromagnetics and Communications, 20.-23.09.2010, Dubrovnik, Kroatien
    ICECom, 2010 Conference Proceedings: IEEE, 978-1-61284-998-0

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