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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.
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).|
|Publisher Link: ||http://dx.doi.org/10.1063/1.4906531|
|Appears in Collections:||Published Articles (Physics)|
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