Chaotic behavior of quantum cascade lasers at ignition

被引：3
|
作者：
Onder, D. E. [1 ]
Kalaee, A. A. S. [1 ]
Winge, D. O. [2 ]
Wacker, A. [1 ]
机构：
[1] Lund Univ, Math Phys & Nanolund, Box 118, S-22100 Lund, Sweden
[2] Lund Univ, Synchrotron Radiat Phys & Nanolund, Box 118, S-22100 Lund, Sweden
来源：
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION | 2021年 / 103卷
基金：
瑞典研究理事会;
关键词：
Quantum cascade laser; Chaos; Simulation; Lyapunov exponents; LYAPUNOV EXPONENTS; SEMICONDUCTOR; DYNAMICS; MODEL;
D O I：
10.1016/j.cnsns.2021.105952
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The ignition of Quantum Cascade Lasers can occur from a state of oscillating field domains. Here, the interplay between lasing and the kinetics of traveling domain boundaries provides complex oscillation scenarios. We analyze our numerical findings in detail for a device operating at terahertz frequencies and manifest chaotic evolution by positive Lyapunov exponents. This shows that these important devices can exhibit chaotic behavior even without periodic driving, which needs to be taken into account in their design. (c) 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )
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页数：11
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