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This article is cited in 5 scientific papers (total in 5 papers)
CONDENSED MATTER
Anharmonic Bloch oscillation of electrons in biased superlattices
K. A. Ivanovab, A. G. Petrovc, M. A. Kaliteevskiabc, A. J. Gallantd a St. Petersburg Academic University, 194021 St. Petersburg, Russia
b St. Petersburg National Research University of Information Technologies, Mechanics and Optics, 197101 St. Petersburg, Russia
c Ioffe Physico-Technical Institute of the RAS, 194021 St. Petersburg, Russia
d School of Engineering and Computing Sciences, Durham University, South Road, DH1 3LE Durham, UK
Abstract:
The oscillatory motion of electrons in a periodic potential under a constant applied electric field, known as Bloch Oscillations (BO), is one of the most striking and intriguing quantum effects and was predicted more than eighty years ago. Oscillating electrons emit electromagnetic radiation and here we consider this BO effect for emission in the THz region. To date, it has been assumed that the Bloch oscillation of an electron is an harmonic oscillation, therefore with radiation emitted at the single Bloch frequency. We analyze scenarios when Bloch oscillations can be accompanied by the emission of radiation not only at the Bloch frequency but also with double and triple Bloch frequencies. The first scenario means that electrons could jump over neighboring Stark states. The second scenario of anharmonic emission is coupled to an opening of the minigap in the miniband.
Received: 02.09.2015
Citation:
K. A. Ivanov, A. G. Petrov, M. A. Kaliteevski, A. J. Gallant, “Anharmonic Bloch oscillation of electrons in biased superlattices”, Pis'ma v Zh. Èksper. Teoret. Fiz., 102:12 (2015), 911–918; JETP Letters, 102:12 (2015), 796–802
Linking options:
https://www.mathnet.ru/eng/jetpl4815 https://www.mathnet.ru/eng/jetpl/v102/i12/p911
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Abstract page: | 152 | Full-text PDF : | 21 | References: | 35 | First page: | 14 |
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