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Title: Microwave generation in synchronized semiconductor superlattices
Authors: Gaifullin, Marat
Alexeeva, Natalia V.
Hramov, Alexander E.
Makarov, V.V.
Maksimenko, V.A.
Koronovskii, Alexey A.
Greenaway, M.T.
Fromhold, T.M.
Patane, A.
Mellor, Christopher
Kusmartsev, F.V.
Balanov, Alexander G.
Keywords: Semiconductor miniband superlattice
High-frequency oscillations
Issue Date: 2017
Publisher: © American Physical Society
Citation: GAIFULLIN, M. ... et al, 2017. Microwave generation in synchronized semiconductor superlattices. Physical Review Applied, 7, 044024.
Abstract: We study high-frequency generation in a system of electromagnetically coupled semiconductor superlattices fabricated on the same doped substrate. Applying a bias voltage to a single superlattice generates high-frequency current oscillations. We demonstrate that within a certain range of the applied voltage, the current oscillations within the superlattices can be self-synchronized, which leads to a dramatic rise in the generated microwave power. These results, which are in good agreement with our numerical model, open a promising practical route towards the design of high-power miniature microwave generators.
Description: This paper was accepted for publication in the journal Physical Review Applied and the definitive published version is available at http://dx.doi.org/10.1103/PhysRevApplied.7.044024.
Sponsor: This work is supported by the Engineering and Physical Sciences Research Council (Grants No. EP/K503800/1 and No. EP/M016099/1). The numerical studies of the synchronization of the semiconductor superlattices is supported by the Russian Foundation for Basic Research (Grants No. 15-02-00624-a and No. 16-32-00272-mol-a). A. E. H. also acknowledges support from the Ministry of Education and Science of Russian Federation (Project No. 3.4593.2017/VU).
Version: Published
DOI: 10.1103/PhysRevApplied.7.044024
URI: https://dspace.lboro.ac.uk/2134/25027
Publisher Link: http://dx.doi.org/10.1103/PhysRevApplied.7.044024
Appears in Collections:Published Articles (Physics)

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