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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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journal contribution
posted on 17.08.2017, 15:21 by Aleksei V. Shorokhov, Nikolai A. Pyataev, Nikolai N. Khvastunov, Timo Hyart, Feodor Kusmartsev, Kirill Alekseev
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.

Funding

This work was supported by the Ministry of Education and Science of the Russian Federation (project no. 2.2665.2014), by the Engineering and Physical Sciences Research Council (United Kingdom, grant no. EP/I01490X/1), by the Royal Society (United Kingdom–India Collaboration), and, in part, by the Ministry of Education and Science of the Russian Federation (state contract no. 11.519.11.3023).

History

School

  • Science

Department

  • Physics

Published in

JETP Letters

Volume

100

Issue

12

Pages

766 - 770

Citation

SHOROKHOV, A.V., ... et al., 2015. Physical principles of the amplification of electromagnetic radiation due to negative electron masses in a semiconductor superlattice. JETP Letters, 100 (12), pp.766-770.

Publisher

Springer (© Pleiades Publishing)

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

The final publication is available at Springer: http://dx.doi.org/10.1134/S002136401424014X. Originally published as: Fizicheskie printsipy usileniya elektromagnitnogo izlucheniya na otricatel'nykh elektronnykh massakh na osnove poluprovodnikovoi sverkhreshetki, Pis'ma v zhurnal eksperimental'noi i teoreticheskoi fiziki, 2014, 100 (12), pp.870-875.

ISSN

0021-3640

eISSN

1090-6487

Language

en

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