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Physical principles of the amplification of electromagnetic radiation due to negative electron masses in a semiconductor superlattice

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Abstract

In a superlattice placed in crossed static electric and magnetic fields, under certain conditions, the inversion of electron population can appear at which the average energy of electrons is above the middle of the mini-band and the effective mass of the electron is negative. This is the implementation of the negative effective mass amplifier and generator (NEMAG) in the superlattice. It can result in the amplification and generation of terahertz radiation even in the absence of negative differential conductivity.

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Authors and Affiliations

  1. National Research Mordovian State University, ul. Bol’shevistskaya 68, Saransk, 430005, Russia

    A. V. Shorokhov & M. A. Pyataev

  2. Mordovian State Pedagogical Institute, ul. Studencheskaya 11a, Saransk, 430007, Russia

    N. N. Khvastunov

  3. Department of Physics, University of Jyväskylä, FI-40014, Jyväskylä, Finland

    T. Hyart

  4. Department of Physics, Loughborough University, LE11 3TU, Loughborough, UK

    F. V. Kusmartsev & K. N. Alekseev

Authors
  1. A. V. Shorokhov
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  2. M. A. Pyataev
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  3. N. N. Khvastunov
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  4. T. Hyart
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  5. F. V. Kusmartsev
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  6. K. N. Alekseev
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Correspondence to A. V. Shorokhov.

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Original Russian Text © A.V. Shorokhov, M.A. Pyataev, N.N. Khvastunov, T. Hyart, F.V. Kusmartsev, K.N. Alekseev, 2014, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2014, Vol. 100, No. 12, pp. 870–875.

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Shorokhov, A.V., Pyataev, M.A., Khvastunov, N.N. et al. Physical principles of the amplification of electromagnetic radiation due to negative electron masses in a semiconductor superlattice. Jetp Lett. 100, 766–770 (2015). https://doi.org/10.1134/S002136401424014X

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  • DOI: https://doi.org/10.1134/S002136401424014X

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