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  4. Optical control of Bloch-oscillation amplitudes: From harmonic spatial motion to breathing modes
 
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1998
Journal Article
Title

Optical control of Bloch-oscillation amplitudes: From harmonic spatial motion to breathing modes

Other Title
Optische Kontrolle von Blochoszillationsamplituden: Von harmonisch räumlicher Bewegung zu oszillierenden Moden
Abstract
We use a technique to measure the spatial dynamics of Bloch wave packets in semiconductor superlattices and investigate the dependence of the dynamics on the optical excitation conditions. For excitations well above or below the center of the Wannier-Stark ladder (WSL), the wave packets perform harmonic oscillations following the prediction of Zener; for excitations near the center of the WSL, the wave packets undergo a symmetric oscillation with virtually zero center-of-mass amplitude.
Author(s)
Sudzius, M.
Lyssenko, V.G.
Löser, F.
Leo, K.
Dignam, M.M.
Köhler, Klaus  
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Journal
Physical Review. B  
DOI
10.1103/PhysRevB.57.R12693
Language
English
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Keyword(s)
  • III-V Halbleiter

  • III-V semiconductor

  • optical measurement

  • optische Messung

  • superlattice

  • Übergitter

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