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

包络孤子的基础物理 - 磁薄膜中的微波孤子

• 批准号: 9801649
• 负责人: Carl Patton
• 金额: $ 28.5万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-15 至 2001-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9801649&HistoricalAwards=false
• 关键词: Fundamental; Physics; Envelope; Solitons; Microwave

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.

巴顿9801649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。研究微波磁包络孤子的非线性物理。 (1)反馈技术将被用来自生成纯本征模孤子和从输入脉冲形成孤子。 (2)本征模，本征值，振幅，相位，衰减和速度特性的这些基本孤子激发，然后将进行调查。 (3)参数技术将被用来激发孤子和调制不稳定信号下的短和长的信号脉冲条件下，分别和这些关键的非线性过程和孤子特性之间的基本连接将被调查。 (4)利用布里渊光散射研究了MME孤子的二维空间分布和波矢分布以及调制不稳定性响应轮廓。这项工作旨在从基本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进行新的见解。该项目为本科生、研究生和博士后提供了最先进的经验。这提供了基础物理，微波和光散射方法的基础培训，这些方法在数据处理，高速计算，海量数据存储和国防中有应用。薄的单晶铁氧体薄膜为研究甚高频脉冲在非线性介质中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。 孤子是一种强脉冲，可用于远程光通信、微波信号处理和非线性物理的基础研究。这项研究将利用反馈技术，参量激发，和光学方法来探测这些属性。这项工作旨在从基本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进行新的见解。该项目为本科生、研究生和博士后提供了最先进的经验。这提供了基础物理，微波和光散射方法的基础培训，这些方法在数据处理，高速计算，海量数据存储和国防中有应用。