超晶格量子阱光学双稳态系统的全局分叉与混沌行为  

The Global Bifurcation and Chaotic Behaviours of Optic Biastable State for Superlattice Qautum Well

作　　者：但伟[1] 赵忠国 曾庆高[1] 

机构地区：[1]重庆光电技术研究所,重庆400060 [2]重庆特种设备质量安全检测中心,重庆400020

出　　处：《中国电子科学研究院学报》2008年第1期30-33,共4页Journal of China Academy of Electronics and Information Technology

摘　　要：基于超晶格量子阱的双稳态效应,在经典力学框架内,把粒子的运动方程化为了具有阻尼项和受迫项的摆方程。利用Melnikov方法分析了系统的全局分叉与Smale马蹄变换意义上的混沌行为,给出了系统通过级联分叉进入混沌的临界值。结果表明,系统进入混沌的临界条件与它的参数有关,只需适当调节这些参数就可以避免或控制混沌,为光学双稳态器件的设计提供了理论分析。The particle motion equation is reduced to the pendulum equation with a dampping and a force terms in the classical mechanics frame based on the bistable state effect of the superlattice quantum well. The global bifurcation and a chaotic behaours with the Smale horseshoe are analysed by Melnikov method. The critical condition through to a chaos based on a cascade bifurcation is found. It shows that the critical condition entered in a chaos is related to the parameters of the system, provides regulating a parameters of the system, the chaos can be avoided or controlled. The theoretical analyse is provided to the design of the optical biastable stable cell.

关 键 词：量子阱 正弦平方势 超晶格 摆方程 

分 类 号：O471.5[理学—半导体物理] O571.33[理学—物理]