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Coupled Bloch-phonon oscillations in GaAs/AlGaAs superlattices: theory and experiment

✍ Scribed by T. Dekorsy; A. Bartels; H. Kurz; A.W. Ghosh; L. Jönsson; J.W. Wilkins; K. Köhler; R. Hey; K. Ploog


Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
104 KB
Volume
7
Category
Article
ISSN
1386-9477

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Bloch oscillations in GaAs/AlGaAs superl
✍ Hartmut G. Roskos; Christian Waschke; Ralf Schwedler; Patrick Leisching; Youssef 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 209 KB

Bloch oscillations of wave packets in semiconductor superlattices are observed by \(\mathrm{THz}-\) emission spectroscopy after pulsed photo-excitation well above the fundamental bandgap. We show that Bloch oscillations are induced by excitation of states in both the first and the second electron mi