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Title: | Sub-terahertz amplification in a semiconductor superlattice with moving charge domains |
Authors: | Makarov, V.V. Hramov, Alexander E. Koronovskii, Alexey A. Alekseev, Kirill N. Maximenko, V.A. Greenaway, M.T. Fromhold, T.M. Moskalenko, Olga I. Balanov, Alexander G. |
Issue Date: | 2015 |
Publisher: | © American Institute of Physics |
Citation: | MAKAROV, V.V. ... et al, 2015. Sub-terahertz amplification in a semiconductor superlattice with moving charge domains. Applied Physics Letters, 106 (4), 043503. |
Abstract: | We theoretically study the high-frequency response of charge domains traveling through a strongly coupled semiconductor superlattice with an applied harmonic electromagnetic signal. Our calculations show that the superlattice alone can amplify signals with a frequency close to the domain transient frequency. Moreover, we show that if the superlattice is connected to a resonator, amplification becomes possible for much higher frequencies of the external signal (several hundred GHz). These promising results open the way to using semiconductor superlattices as efficient sub-THz amplifiers. |
Description: | This article was published in the journal Applied Physics Letters [© AIP Publishing]. It is also available at: http://dx.doi.org/10.1063/1.4906531 |
Sponsor: | Russian Scientific Foundation supported study of the semiconductor superlattice coupled to resonator (Grant No. 14-12-00222). M.T.G. acknowledges financial support from the Leverhulme Trust (UK). |
Version: | Published |
DOI: | 10.1063/1.4906531 |
URI: | https://dspace.lboro.ac.uk/2134/17298 |
Publisher Link: | http://dx.doi.org/10.1063/1.4906531 |
ISSN: | 0003-6951 |
Appears in Collections: | Published Articles (Physics)
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