RUI: Dynamics of Nonlinear Spin Waves in Magnetic Films: Envelope Solitons, Self-Focusing, Wave Collapse

9701640 Slavin这是一笔赠款，用于支持奥克兰大学的研究。 该研究计划包括非线性磁性和有限介质中的激励的理论研究，即设备。 本基金资助的具体项目有：（1）有限孔径短波光束和脉冲在磁性薄膜中的二维非线性衍射，导致自沟道、自聚焦和波塌缩;（2）弱耗散磁性薄膜中一维“亮”和“暗”自旋波包络孤子的形成和传播;外微波泵浦下磁性薄膜中的包络孤子。 研究结果将有助于基于磁性薄膜非线性自旋波过程的微波信号处理器件的开发。 该补助金支持在一个主要的本科机构对设备磁性问题的理论研究。 这项研究预计将推进我们的非线性波动力学的磁介质的理解，并有应用程序，以更好地了解高品质的石榴石薄膜的微波技术中使用的属性。 该项目涉及国际公认的积极研究计划框架内的本科生。 ***

9701640 Slavin This is a grant to support research at a largely Undergraduate Institution, the Oakland University. The research program consists of a theoretical study of nonlinear magnetism and excitations in finite media, i.e. devices. The specific projects in this grant are: (1) Two dimensional nonlinear diffraction of finite aperture SW beams and pulses in magnetic films leading to self channeling, self focusing and wave collapse; (2) Formation and propagation of one dimensional "bright" and "dark" spin- wave envelope solitons in weakly dissipative magnetic films and (3) parametric amplification of "bright" envelope solitons in magnetic films by external microwave pumping. Results of this research will be useful for the development of microwave signal processing devices based on nonlinear spin wave processes in magnetic films. %%% This grant supports theoretical research at a predominantly undergraduate institution on a problem in device magnetism. The research is expected to advance our understanding of nonlinear wave dynamics in a magnetic medium and has applications to a better understanding of the properties of high quality garnet films as used in microwave technology. The project involves undergraduate students within the framework of an internationally acknowledged active research program. ***