MRI-R2: Acquistion of Microwave Network Analyzer for Studies of Global Statistics of Waves in Random Media

MRI-R2：购买微波网络分析仪，用于研究随机介质中波的全局统计

• 批准号: 0958772
• 负责人: Azriel Genack
• 金额: $ 12.57万
• 依托单位: CUNY Queens College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-03-01 至 2012-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0958772&HistoricalAwards=false
• 关键词: MRI; R2; Acquistion; Microwave; Network

0958772GenackCUNY Queens CollegeTechnical Summary: This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The N5242A Microwave Network Analyzer from Agilent Technologies will provide the speed and dynamic range needed to collect massive sets of high-quality microwave data on wave propagation in random systems that will dramatically advance this field. Measurements of the transmission coefficients between a large number of points on the input and output of random sample configurations will allow us to determine the matrices for transmission through random samples and to determine their eigenvalues and eigenstates. This will provide the links between the statistics of field, intensity, total transmission, and transmittance and will thereby bridge the gap between optical transmission and electronic conductance. Among the eigenstates of the transmission matrix for opaque media are states with transmission approaching unity. We will find these states and will thereby be able to probe the interior of random systems. We will also be able to determine the eigenvalues of the underlying electromagnetic quasi-normal modes and their speckle patterns in transmission. This will provide a full description of static and dynamic wave properties and will foster advances in imaging and photonics. The success of this work will strengthen the CUNY Photonic Center established to enhance the technological base of the New York City metropolitan area. Students from local high schools and undergraduates as well as graduate students and a postdoc will utilize this equipment to conduct research at the forefront of the field of transport. This will expose a diverse group of students to the excitement and power of research at an early stage of their careers.Layman Summary: This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). We explore and control our environment and stay in touch with one another via waves. In addition to light and sound, we rely increasingly on electron waves and microwave radiation for communication. The shared wave character of light and electrons is behind the rapid growth of the photonics industry and the promise it holds for continued device miniaturization and increased speed. At the same time, the transport of multiply scattered quantum and classical waves in disordered systems remains a crucial issue in communications and imaging. Important examples of propagation in random media are electron flow in conductors and insulators, light scattering in paint, the atmosphere and biological tissue, and acoustic scattering in the earth's crust. The use of the proposed advance microwave measurement system will allow us to decompose the measured microwave field into the fundamental modes of oscillation of waves of randomly scattering systems. This will provide a full description of the transmission of steady-state and pulsed radiation. We will also find ways to combine incident fields to achieve high transmission through opaque systems. This work will advance the understanding of wave scattering and find applications in electronics, medical imaging, and geological exploration for oil and gas. The availability of the advanced microwave source and detector will strengthen the Photonic Center of the City University of New York established to enhance the technological base of the New York City metropolitan area. Students from local high schools and undergraduates as well as graduate students and a postdoc will utilize this equipment to conduct research at the forefront of the field of transport. This will expose a diverse group of students to the excitement of research at an early stage of their careers.

0958772 GenackCUNY Queens CollegeTechnical Summary：该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。安捷伦科技公司的N5242 A微波网络分析仪将提供所需的速度和动态范围，以收集大量关于随机系统中波传播的高质量微波数据，这将大大推动这一领域的发展。测量随机样品配置的输入和输出上的大量点之间的传输系数将允许我们确定通过随机样品传输的矩阵，并确定其本征值和本征态。这将提供场、强度、总透射率和透射率的统计之间的联系，从而将弥合光透射率和电子电导之间的差距。在不透明介质的传输矩阵的本征态中，有传输接近于1的状态。我们将找到这些状态，从而能够探测随机系统的内部。我们也将能够确定潜在的电磁准正常模式的本征值和它们在传输中的散斑图案。这将提供一个完整的描述静态和动态波的属性，并将促进成像和光子学的进步。这项工作的成功将加强为加强纽约市大都市区的技术基础而建立的纽约市立大学光子中心。来自当地高中和本科生以及研究生和博士后的学生将利用这些设备在运输领域的最前沿进行研究。这将使不同群体的学生在他们职业生涯的早期阶段接触到研究的兴奋和力量。外行摘要：该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。我们探索和控制我们的环境，并通过波与彼此保持联系。除了光和声音，我们越来越依赖电子波和微波辐射进行通信。光和电子共享的波动特性是光子学产业快速增长的背后，也是它为持续的器件小型化和提高速度所带来的希望。与此同时，多重散射量子波和经典波在无序系统中的传输仍然是通信和成像中的一个关键问题。随机介质中传播的重要例子是导体和绝缘体中的电子流，油漆、大气和生物组织中的光散射，以及地壳中的声散射。使用建议的先进的微波测量系统将允许我们将测量的微波场分解成随机散射系统的波的振荡的基本模式。这将提供稳态和脉冲辐射传输的完整描述。我们还将找到方法来结合联合收割机入射场，以实现通过不透明系统的高透射率。这项工作将推进对波散射的理解，并在电子，医学成像和石油和天然气地质勘探中找到应用。先进的微波源和探测器的提供将加强为加强纽约市大都会地区的技术基础而建立的纽约城市大学光子中心。来自当地高中和本科生以及研究生和博士后的学生将利用这些设备在运输领域的最前沿进行研究。这将使不同群体的学生在职业生涯的早期阶段就能感受到研究的兴奋。