RUI: Spectroscopy of Many-Body Processes in Nanostructures

RUI：纳米结构多体过程的光谱学

• 批准号: 0906945
• 负责人: Tigran Shahbazyan
• 金额: $ 12.3万
• 依托单位: Jackson State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0906945&HistoricalAwards=false
• 关键词: RUI; Spectroscopy; Many; Body; Processes

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). TECHNICAL SUMMARY This award supports theoretical research and education to develop analytical and numerical methods to analyze the role of many-body interactions on electron dynamics in nanostructures. The research will focus on the spectroscopic properties of hybrid systems comprised of dye molecules and metallic quantum dots and on spin dynamics of excitons in semiconductor quantum wells with applied magnetic field. The goal is to provide an accurate description of optical characteristics that are enhanced by plasmons and modified by Coulomb correlations. These studies are relevant for applications such as sensors and biomedical devices.In order to address the energy transfer processes that determine radiation of a dye molecule in the proximity of gold or silver nanoparticle the research will expand methodologies based on time-dependent local density approximation. Quantum mechanical effect associated with the size of the nano-particles will included to study fluorescence or surface-enhanced resonant Raman scattering spectra. Cooperative phenomena will be accounted within a classical description. The research will also investigate the non-linear optical response of two-dimensional magneto-exitons in the presence of spin-orbit coupling and phonon-assisted spin-orbit scattering. Undergraduate students at Jackson State University will be involved in the research and receive educational experience on a variety of analytical and numerical methods. The students will present the results of their work in publications and conference presentations. Undergraduate students at a Historical Black College will participate in advanced research projects and learn the mathematical and scientific skills crucial for a successful career.NONTECHNICAL SUMMARY Spectroscopy is a widely used experimental techniques to probe the properties of materials at the atomic level. This award supports theoretical research and education to predict and interpret the experiments on systems comprised of complex molecules that interact strongly with light and very small metallic particles. The optical properties associated with the interaction between many electrons and light in semiconductors will be also investigated. These studies are relevant for applications such as sensors and biomedical devices. Undergraduate students at a Historical Black College will participate in advanced research projects and learn the mathematical and scientific skills crucial for a successful career.

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。该奖项支持理论研究和教育，以开发分析和数值方法来分析多体相互作用对纳米结构中电子动力学的作用。研究将集中在 染料分子和金属量子点组成的混合系统的光谱性质以及外加磁场下半导体量子威尔斯中激子的自旋动力学。我们的目标是提供一个准确的描述，增强等离子体激元和库仑相关修改的光学特性。这些研究是相关的应用，如传感器和生物医学devices.To解决的能量转移过程，确定辐射的染料分子在金或银纳米粒子附近的研究将扩大方法的基础上，时间依赖的局部密度近似。量子力学效应与纳米粒子的尺寸将包括在荧光或表面增强共振拉曼散射光谱的研究。合作现象将在一个经典的描述。本研究亦将探讨二维磁激子在自旋轨道耦合及声子辅助自旋轨道散射下的非线性光学响应。杰克逊州立大学的本科生将参与研究，并获得各种分析和数值方法的教育经验。学生将在出版物和会议报告中介绍他们的工作成果。历史黑人学院的本科生将参加高级研究项目，学习对成功职业至关重要的数学和科学技能。非技术概述光谱学是一种广泛使用的实验技术，用于在原子水平上探测材料的性质。该奖项支持理论研究和教育，以预测和解释由与光和非常小的金属粒子强烈相互作用的复杂分子组成的系统的实验。也将研究与半导体中的许多电子和光之间的相互作用相关的光学性质。这些研究与传感器和生物医学设备等应用相关。历史黑人学院的本科生将参加高级研究项目，学习对成功职业至关重要的数学和科学技能。