THz‐manipulation of excitonic polarization in (GaIn)As/GaAs quantum wells. Issue 9 (31st May 2013)

• Record Type: Journal Article
• Authors: Ewers, B.; Köster, N. S.; Woscholski, R.; Koch, M.; Chatterjee, S.; Khitrova, G.; Gibbs, H. M.; Klettke, A. C.; Kira, M.; Koch, S. W.; Ulrich, Sven M.; Jetter, Michael; Michler, Peter
• Is Part Of: Physica status solidi. Volume 10:Issue 9(2013:Sep.)
• Page Start: 1226
• Page End: 1229
• Publication Date: 2013-05-31
• Subjects: Solid state physics -- Congresses; Solid state physics -- Periodicals; Solid state physics; Conference proceedings; Periodicals; 530.41
• DOI: 10.1002/pssc.201200722
• Languages: English
• ISSNs: 1862-6351

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>We investigate the interaction of strong single‐cycle THz‐pulses with a coherent excitonic polarization. The initial bleaching is superimposed by a splitting of the 1<italic>s</italic> exciton resonance and eventually is accompanied by the emergence of side‐bands on both the high and low energy sides of the former resonance.</p> <p>A quantum‐mechanical many‐body analysis associates these observations with the transition from excitationinduced bleaching and the regime of excitonic Rabi flopping to multi‐THz‐photon ionization and hence the population of states with high orbital quantum numbers. (© 2013 WILEY‐VCH Verlag GmbH &amp; Co. KGaA, Weinheim)</p> </abstract>