MRI: Development of a Full-Muller-Matrix Spectroscopic Ellipsometer for Far-IR Radiation at the National Synchrotron Light Source (NSLS-BNL)

MRI：开发用于国家同步加速器光源 (NSLS-BNL) 远红外辐射的全穆勒矩阵光谱椭偏仪

• 批准号: 0821224
• 负责人: Andrei Sirenko
• 金额: $ 50.24万
• 依托单位: New Jersey Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0821224&HistoricalAwards=false
• 关键词: MRI; Development; Full; Muller; Matrix

Technical Abstract:This MRI Proposal focuses on the development of a full-Muller-matrix spectroscopic ellipsometer for a broadband spectral range of the far-infrared synchrotron radiation. This ellipsometer will be installed at one of the infrared beamlines of the National Synchrotron Light Source (NSLS) and will become available to General User experimental programs at NSLS, and in the future, at NSLS-II. The proposed instrument will establish closer collaboration between different Universities working with the THz and far-infrared spectroscopy and will support interdisciplinary projects in Condensed Matter Physics. The unique features of the proposed development include simultaneous measurements of normalized spectra of the Muller-matrix components (including the 4th row and 4th column) with the help of rotating retarders and polarizers providing direct information about the real and imaginary parts of both electrical permittivity and magnetic permeability tensors of the investigated materials. The proposed instrument will facilitate analysis of dielectric and magnetic properties of multiferroic materials, ultra-thin high-K dielectric films, magnetic nanostructured oxides, superconducting films, and other strongly correlated materials. The sample properties will be studied under the influence of an external magnetic field up to 10 T, under uniaxial pressure up to 10 kbars, and in the temperature range between 4 and 350 K. The integration between fundamental research, new instrumentation development, and the education of graduate and undergraduate students, as well as a close collaboration between Universities and Brookhaven National Lab are other important aspects of this proposal.Non-Technical Abstract: This MRI Proposal focuses on the development of an advanced spectroscopic ellipsometer for far-infrared and THz spectral ranges. This instrument will utilize the advantages of the brightest manmade source of radiation at the National Synchrotron Light Source (NSLS). Upon development, this ellipsometer will be installed at the infrared beamline of NSLS and will become available to the broad team of beamline Users. The proposed instrument will establish closer collaboration between different University groups working in the field of THz and far-infrared spectroscopy and will support interdisciplinary projects in Condensed Matter Physics. The unique features of the proposed ellipsometer include measurements and analysis of linear and circular polarization of light reflected from the samples providing direct information about dielectric and magnetic properties of the investigated materials. The proposed ellipsometer will facilitate analysis of materials for the future nanoelectronics, such as multiferroics, ultra-thin high-K dielectric films, magnetic nanostructured oxides, superconducting films, and other strongly correlated materials. The sample properties will be studied under the influence of an external magnetic field, under uniaxial pressure, and in the temperature range between 4 and 350 K. The integration between fundamental research, new instrumentation development, and the education of graduate and undergraduate students, as well as a close collaboration between Universities and Brookhaven National Lab are other important aspects of this proposal.

技术摘要：该 MRI 提案的重点是开发适用于远红外同步辐射的宽带光谱范围的全穆勒矩阵光谱椭偏仪。该椭偏仪将安装在国家同步加速器光源 (NSLS) 的红外光束线之一，并将可供 NSLS 以及未来 NSLS-II 的一般用户实验项目使用。拟议的仪器将在从事太赫兹和远红外光谱研究的不同大学之间建立更密切的合作，并将支持凝聚态物理学的跨学科项目。拟议开发的独特功能包括借助旋转延迟器和偏振器同时测量穆勒矩阵分量（包括第 4 行和第 4 列）的归一化光谱，提供有关介电常数和介电常数的实部和虚部的直接信息。所研究材料的磁导率张量。该仪器将有助于分析多铁材料、超薄高 K 介电薄膜、磁性纳米结构氧化物、超导薄膜和其他强相关材料的介电和磁性。将在高达 10 T 的外部磁场、高达 10 kbars 的单轴压力以及 4 至 350 K 的温度范围内研究样品特性。基础研究、新仪器开发和研究生和本科生的教育，以及大学和布鲁克海文国家实验室之间的密切合作是该提案的其他重要方面。非技术摘要：该 MRI 提案重点关注先进光谱技术的开发适用于远红外和太赫兹光谱范围的椭圆偏振仪。该仪器将利用国家同步加速器光源（NSLS）中最亮的人造辐射源的优势。开发完成后，该椭偏仪将安装在 NSLS 的红外光束线上，并可供广大光束线用户团队使用。拟议的仪器将在太赫兹和远红外光谱领域工作的不同大学小组之间建立更密切的合作，并将支持凝聚态物理的跨学科项目。所提出的椭偏仪的独特功能包括测量和分析从样品反射的光的线性和圆偏振，提供有关所研究材料的介电和磁性特性的直接信息。所提出的椭圆仪将有助于对未来纳米电子学材料的分析，例如多铁性材料、超薄高 K 介电薄膜、磁性纳米结构氧化物、超导薄膜和其他强相关材料。将在外部磁场的影响下，在单轴压力下，在4至350 K的温度范围内研究样品的特性。基础研究、新型仪器开发以及研究生和本科生教育之间的整合，如以及大学和布鲁克海文国家实验室之间的密切合作是该提案的其他重要方面。