非线性系数对超晶格透射的影响  

Effects of nonlinearity on the transmission property of superlattices

作　　者：刘炳灿[1] 潘学琴[1] 任志明[1] 

机构地区：[1]装甲兵工程学院基础部,北京100072

出　　处：《物理学报》2006年第12期6595-6599,共5页Acta Physica Sinica

摘　　要：研究了非线性系数对超晶格中波透射的影响.把非线性薛定谔方程转化成二阶差分方程,通过迭代此差分方程得到透射谱.透射谱显示非线性系数对波的透射有明显的调制作用.We investigate the effects of nonlinearity on the transmission property of superlattices. The nonlinear Schrǒdinger equation leads to a second order nonlinear difference equation, and we obtain transmission spectrum of wave by iterating the difference equation. The transmission spectrum shows that the nonlinear coefficient has a distinctive modulation effect on the transmission coefficient.

关 键 词：透射 非线性Kronig-Penny模型 非线性系数 

分 类 号：O437[机械工程—光学工程]