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- Referenz
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- Seitenbereich
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0265 - 0271
- Schlagwort(e)
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<KWD>Bloch oscillations
frequency multiplication of microwave radiation
semiconductor superlattice
- Zusammenfsg.
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We report the observation of frequency multiplication of microwave radiation in a GaAs/AlAs semiconductor superlattice at room temperature. We observed, for a fundamental frequency of 9 GHz, second and third harmonic generation. We associate the harmonic generation with a nonlinear current-voltage characteristic that is determined by Bloch oscillations of electrons propagating along the superlattice axis. Our results suggest for the frequency multiplication an upper limit in the tetrahertz frequency range.
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- Forschungsartikel