The Fundamental Physics of Envelope Solitons - Microwave Solitons in Magnetic Films

这个凝聚态物理项目致力于研究磁性薄膜的动态磁化行为。本文将研究微波磁包络孤子的非线性物理特性。(1)反馈技术将用于自产生纯本征模孤子和从输入脉冲形成孤子。(2)本征模、本征值、幅值、相位、衰减和速度等基本孤子激励的特性将被研究。(3)参数技术将分别用于在短脉冲和长脉冲条件下激发孤子和调制不稳定信号，并研究这些关键非线性过程与孤子性质之间的基本联系。(4)利用布里渊光散射研究MME孤子的二维空间分布和波矢量分布以及调制不稳定性响应曲线。这项工作旨在从基础观点以及光通信和雷达信号处理等领域的技术应用中对非线性脉冲的行为产生新的见解。该项目为本科生、研究生和博士后提供了最先进的体验。本课程提供基础物理、微波和光散射方法的基础训练，这些方法在数据处理、高速计算、海量数据存储和防御方面具有应用。单晶铁氧体薄膜为研究非线性介质中高频脉冲的特性提供了理想的介质。非线性相互作用导致脉冲变窄和孤子形成。孤子是一种鲁棒脉冲，可用于远距离光通信、微波信号处理和非线性物理的基础研究。本研究将利用反馈技术、参数激发和光学方法来探测这些特性。这项工作旨在从基础观点以及光通信和雷达信号处理等领域的技术应用中对非线性脉冲的行为产生新的见解。该项目为本科生、研究生和博士后提供了最先进的体验。本课程提供基础物理、微波和光散射方法的基础训练，这些方法在数据处理、高速计算、海量数据存储和防御方面具有应用。

Patton9801649This condensed matter physics project is devoted to the study of dynamical magnetization behavior in thin magnetic films. The nonlinear physics of microwave magnetic envelope solitons will be investigated. (1) Feedback techniques will be used both to self-generate pure eigenmode solitons and to form solitons from input pulses. (2) The eigenmode, eigenvalue, amplitude, phase, decay, and velocity characteristics of these fundamental soliton excitations will then be investigated. (3) Parametric techniques will be used to excite both solitons and modulational instability signals under short and long signal pulse conditions, respectively, and the fundamental connections between these key nonlinear processes and soliton properties will be investigated. (4) The two dimensional spatial distributions and wave vector distributions of MME solitons and modulational instability response profiles will be investigated by Brillouin light scattering. The work aims at new insights into the behavior of nonlinear pulses which are of interest from fundamental viewpoints as well as technical applications in areas such as, optical communications, and radar signal processing. The project provides a state-of-the-art experience for undergraduate students, graduate students and post-docs. This provide fundamental training in basic physics, microwave and light scattering methods that have applications in data processing, high speed computation, mass data storage, and defense.%%%Thin single crystal ferrite films provide an ideal medium to investigate the properties of very high frequency pulses in nonlinear media. The nonlinear interactions lead to pulse narrowing and soliton formation. Solitons are robust pulses which may be used for long range optical communications, microwave signal processing, and fundamental studies in nonlinear physics. This research will utilize feedback techniques, parametric excitation, and optical methods to probe these properties. The work aims at new insights into the behavior of nonlinear pulses which are of interest from fundamental viewpoints as well as technical applications in areas such as, optical communications, and radar signal processing. The project provides a state-of-the-art experience for undergraduate students, graduate students and post-docs. This provide fundamental training in basic physics, microwave and light scattering methods that have applications in data processing, high speed computation, mass data storage, and defense.