Summary
International Symposium on Nonlinear Theory and Its Applications
2015
Session Number:B3L-A
Session:
Number:B3L-A-3
Generation of Broadband Chaotic Signals in Subterahertz Range Basing on Semiconductor Superlattice for Communication Systems with Chaotic Carriers
Alexander Hramov, Aleksei Koronovskii, Semen Kurkin, Marat Gaifulin, Vladimir Makarov, Vladimir Maximenko, Natalija Alexeeva, Kirill Alekseev, Greenaway, T.M. Fromhold, A. Patanex, F.V. Kusmartsev, O.I. Moskalenko, A.G. Balanov,
pp.526-529
Publication Date:2015/12/1
Online ISSN:2188-5079
Summary:
We study both theoretically and experimentally the onset of broadband sub-THz chaos in the miniband semiconductor superlattice. We consider the effects of a external resonator on the high-frequency dynamics of electrons in electronic device exhibiting negative differential conductance. The transition to the broadband chaos, which is confirmed by calculation of Lyapunov exponents, is associated with intermittency scenario. The theoretical findings are confirmed by experimental measurements of a GaAs/AlAs miniband semiconductor superlattice coupled to a microstripe resonator. Our results provide a generic approach for developing modern chaos-based high-frequency technologies including broadband chaotic wireless communication and for super-fast random-number generation.