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Frequency multiplication of microwave radiation in a semiconductor superlattice by electrons capable to perform Bloch oscillations
Author(s) -
Grenzer J.,
Schomburg E.,
Ignatov A. A.,
Renk K. F.,
Pavel'ev D. G.,
Koschurinov Yu.,
Melzer B. Ja.,
Ivanov S.,
Schaposchnikov S.,
Kop'ev P. S.
Publication year - 1995
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19955070402
Subject(s) - superlattice , physics , semiconductor , microwave , electron , bloch oscillations , harmonic , radiation , multiplication (music) , condensed matter physics , fundamental frequency , optics , optoelectronics , quantum mechanics , acoustics
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.