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Excellence in Research: Processes and Interactions in Hybrid Plasmonic Systems

卓越的研究：混合等离子体系统的过程和相互作用

基本信息

批准号：
2000170
负责人：
Tigran Shahbazyan
金额：
$ 46.71万
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：
2020
资助国家：
美国
起止时间：
2020-10-01 至 2024-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2000170&HistoricalAwards=false
关键词：
Excellence Research Processes Interactions Hybrid

项目摘要

This award is funded jointly by the Condensed-Matter-and-Materials-Theory program in the Division of Materials Research and by the HBCU-UP program in the Division of Human-Resource Development.Nontechnical SummaryThe research project "Excellence in Research: Processes and Interactions in Hybrid Plasmonic Systems" involves theoretical and computational studies in the area of plasmonics with the main focus on plasmon-enhanced optical spectroscopy. Surface plasmons are collective electronic excitations in metal-dielectric composite structures which can interact strongly with excited states in molecules and solids to significantly change their optical characteristics. In plasmonic systems, the optical interactions between surface plasmons and excitations in semiconductor nanostructures or dye molecules underpin numerous plasmonics applications in photovoltaics, optical sensing, and photochemistry, among others. The project aims at modeling the optical properties of hybrid plasmonic systems that are defined by coherent interactions and/or energy transfer between system constituent parts. This research will be carried out at Jackson State University and will substantially aid the development of human resources capacity in a historically black university that primarily serves educational needs of local minority students.Technical SummaryThe project aims at modeling the optical processes and interactions in hybrid plasmonic systems such as metal-dielectric structures conjugated with semiconductor nanostructures or dye molecules. The main topics include studies of (a) spontaneous emission beyond the plasmon field enhancement limits, (b) Forster energy transfer and the transition to the strong-coupling regime, (c) intermediate exciton-plasmon coupling and exciton-induced transparency, (d) Fano interference in hybrid plasmonic systems, and other pertinent issues. The research will be mainly focused on coherent interactions between the system constituents and on related optical processes that determine the optical properties of hybrid systems. The methods include a combination of analytical and numerical tools suitable for analyzing plasmonic systems with many constituent parts. The results will be used for modeling of experimental findings and are expected to aid the development of plasmon-based device applications.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项由材料研究部的凝聚态物质与材料理论项目和人力资源开发部的HBCU-UP项目共同资助。研究项目“卓越研究：混合等离子体系统中的过程和相互作用”涉及等离子体领域的理论和计算研究，主要集中在等离子体增强光谱学上。表面等离子激元是金属-介电复合结构中的集体电子激发，它能与分子和固体中的激发态发生强烈的相互作用，从而显著改变其光学特性。在等离子体系统中，表面等离子体与半导体纳米结构或染料分子激发之间的光学相互作用支撑着等离子体在光伏、光学传感、光化学等领域的众多应用。该项目旨在模拟由系统组成部分之间的相干相互作用和/或能量转移定义的混合等离子体系统的光学特性。这项研究将在杰克逊州立大学进行，将极大地帮助这所历史悠久的黑人大学发展人力资源能力，主要服务于当地少数民族学生的教育需求。该项目旨在模拟混合等离子体系统中的光学过程和相互作用，如金属-介电结构与半导体纳米结构或染料分子共轭。主要课题包括：(a)等离子体场增强极限以外的自发发射，(b)福斯特能量转移和向强耦合状态的过渡，(c)中间激子-等离子体耦合和激子诱导的透明度，(d)混合等离子体系统中的法诺干涉，以及其他相关问题的研究。研究将主要集中在系统组分之间的相干相互作用以及决定混合系统光学性质的相关光学过程。该方法包括解析和数值相结合的方法，适用于分析具有许多组成部分的等离子体系统。该结果将用于实验结果的建模，并有望有助于基于等离子体的器件应用的发展。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。