Intermittency route to chaos and broadband high-frequency generation in semiconductor superlattice coupled to external resonator

被引：9
|
作者：
Hramov, Alexander E. [1 ,2 ]
Makarov, Vladimir V. [1 ,2 ]
Maximenko, Vladimir A. [1 ,2 ]
Koronovskii, Alexey A. [1 ,2 ]
Balanov, Alexander G. [1 ,3 ]
机构：
[1] Saratov State Tech Univ, Res & Educ Ctr Nonlinear Dynam Complex Syst, Saratov 410054, Russia
[2] Saratov NG Chernyshevskii State Univ, Fac Nonlinear Proc, Saratov 410012, Russia
[3] Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England
来源：
PHYSICAL REVIEW E | 2015年 / 92卷 / 02期
基金：
俄罗斯科学基金会;
关键词：
GAAS/ALAS SUPERLATTICE; ELECTRON-BEAM; SYNCHRONIZATION; COMMUNICATION; SIMULATION; OSCILLATIONS; NETWORK;
D O I：
10.1103/PhysRevE.92.022911
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We investigate the onset of broadband microwave chaos in the miniband semiconductor superlattice coupled to an external resonator. Our analysis shows that the transition to chaos, which is confirmed by calculation of Lyapunov exponents, is associated with the intermittency scenario. The evolution of the laminar phases and the corresponding Poincare maps with variation of a supercriticality parameter suggest that the observed dynamics can be classified as type I intermittency. We study the spatiotemporal patterns of the charge concentration and discuss how the frequency band of the chaotic current oscillations in semiconductor superlattice depends on the voltage applied.
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收藏
页数：8
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