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  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1993),
  • paper JTuA3

Observation of Bloch oscillations in a GaAs/AIGaAs superlattice

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Abstract

Semiconductor superlattice (SL) structures are ideal systems for a detailed study of the properties of periodic potential structures in an electric field. In the frequency domain, Wannier-Stark-ladders (WSL) were observed by various techniques. Recently, Bloch oscillations, which are the time-domain equivalent of WSL, have been investigated by time-resolved optical techniques.1,2 In this contribution, we trace the spatial dynamics of carriers in a superlattice by comparing self-diffracted Degenerate-Four-Wave-Mixing (DFWM) and Terahertz Emission (TE) measurements.

© 1993 Optical Society of America

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