Bloch oscillations in GaAs/AlGaAs superl
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Hartmut G. Roskos; Christian Waschke; Ralf Schwedler; Patrick Leisching; Youssef
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Article
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1994
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Elsevier Science
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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