Towards Dispersion Management and Coherent Plasmon Optics in Nanostructured Metallodielectric Composites

纳米结构金属介电复合材料中的色散管理和相干等离子体光学

• 批准号: 0804433
• 负责人: Miriam Deutsch
• 金额: $ 42.07万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0804433&HistoricalAwards=false
• 关键词: Towards; Dispersion; Management; Coherent; Plasmon

Technical: This project aims for greater understanding, development, and optical characterization of new metallodielectric nano-composite materials. Dispersion of the dielectric permittivity, as arising from composition, structure and symmetry is a primary issue of concern, because it enables control, creation and detection of optical information, since new dispersive phenomena are now known to arise in micro and nanostructured materials. The approach addresses such dispersive response in selection of nanostructured metallodielectric composite materials, referred to as metamaterials, and study of linear optical response of metallodielectric composites in the context of three fundamentally distinct dispersion management protocols: (i) Starting with nanostructured composites, effective material permittivities will be measured, delineating their dependence on symmetry, scale and order. (ii) At the meso-scale, plasmon mode-coupling in quasi two-dimensional metallodielectric photonic crystals will be studied in the context of a coherently-induced transparency. (iii) At the material level, coupling of the metallodielectric structures to a resonant gain medium will allow active control over metamaterial dispersion. The integrated results of this study are expected to result in a more comprehensive and fundamental understanding of dispersion management in both active and passive metamaterials. Since the project addresses fundamental questions of light-matter interactions in nanoscale plasmonic systems, results and knowledge gained will be relevant to understanding signal manipulation in sub-diffraction volumes in the presence of strong dispersion. Such understanding is expected to have impact in fields such as light harvesting, nanoscale signal routing and storage, high-resolution imaging systems and active plasmonic devices.Non-technical: The project addresses basic research issues in a topical area of electronic/photonic materials science with high technological relevance. Current development of photonic devices capable of manipulating optical information may substantially impact advancement of present and future optical technologies. The proposed research is interdisciplinary in nature, offering collaborative opportunities for all participating students. A goal is to make known the many fascinating aspects of materials science by exposing university students of all levels to research and multi-disciplinary scientific work. At the undergraduate level the aim is to expand avenues for learning by offering a variety of course and research opportunities. At the graduate level the project addresses involvement and development of existing educational and internship programs, both in materials science and optics.

技术：该项目旨在更好地理解，开发和光学表征新的金属介电纳米复合材料。由组成、结构和对称性引起的介电常数的色散是主要关注的问题，因为它能够控制、创建和检测光学信息，因为现在已知新的色散现象出现在微米和纳米结构材料中。该方法解决了这样的分散响应在选择的纳米结构的metaldielectric复合材料，称为超材料，和研究的线性光学响应的metaldielectric复合材料的上下文中的三个根本不同的分散管理协议：（i）开始与纳米结构的复合材料，有效的材料折射率将被测量，描绘它们的依赖于对称性，规模和秩序。(ii)在介观尺度下，研究了准二维金属介质光子晶体中的等离子体激元模式耦合。(iii)在材料水平上，将金属电介质结构耦合到谐振增益介质将允许对超材料色散进行主动控制。这项研究的综合结果预计将导致在主动和被动的超材料中的色散管理的更全面和根本的理解。由于该项目解决了纳米级等离子体系统中光-物质相互作用的基本问题，因此获得的结果和知识将与理解存在强色散时子衍射体积中的信号操纵有关。这种理解预计将在光收集，纳米级信号路由和存储，高分辨率成像系统和有源等离子体器件等领域产生影响。非技术性：该项目解决了电子/光子材料科学领域的基础研究问题，具有高度的技术相关性。能够操纵光学信息的光子器件的当前发展可以实质上影响当前和未来光学技术的进步。拟议的研究是跨学科的性质，为所有参与的学生提供合作的机会。一个目标是通过让各级大学生接触研究和多学科科学工作，使人们了解材料科学的许多迷人方面。在本科阶段，目的是通过提供各种课程和研究机会来扩大学习途径。在研究生阶段，该项目涉及材料科学和光学领域现有教育和实习计划的参与和发展。