Enabling Foundations of Nanoplasmonics

[0523923] citrin1 .本论文主要研究非接触金属纳米颗粒（NP）链中光学频率的电磁输运。这些可以作为新器件和光子结构的基础，并在现有器件中实现额外的功能。这种传输背后的等离子体-电磁混合激发是等离子体激元。该项目将在乔治亚理工学院的David Citrin小组中进行。拟议的研究在电气工程和器件物理的几个领域具有广泛的兴趣。关键问题是识别和研究新效应，并评估其在设备应用中的适用性。智力优势：本研究旨在通过实现新的非线性器件和增强现有器件的功能来促进纳米等离子体的开发。因此，这项工作可能具有广泛的适用性，可以在光电子学、光子学、生物技术和纳米技术等领域得到广泛应用。该计划将填补对单个NP的基本理解和设备制造之间的空白。因此，该研究将阐明由金属NP组成的结构中的电磁输运机制，然后利用这些知识来确定新器件概念的可行性和性能。更广泛的影响：研究生和本科生的教育是一个优先事项。该研究将纳米技术与光电子学和光子学结合起来，提供了优秀的多学科培训。拟议项目的一个关键组成部分是进一步加强佐治亚理工学院各学院之间的合作，包括电气与计算机工程、材料科学与工程以及化学。PI正在准备他将于2005年秋季开设的关于光学纳米结构的新专题课程；金属NP将构成本课程的一个模块。此外，这项工作将有助于PI开始为在该小组工作的本科生开发的“纳米讲座”系列。我们还将利用现有的多学科结构，如佐治亚理工学院的光学聚合物中心。研究结果将广泛传播；它们将发表在工程和科学文献上，并在会议上发表。这项工作可能使线性和非线性、无源和有源纳米光子和光电子器件成为可能。这包括更传统的应用，如互连，但也可能是在生物和医学领域的应用，在这些应用中，需要在小于一个波长的区域内传输光能。

0523923CitrinThis proposal focuses on electromagnetic transport at optical frequencies in chains of noncontacting metal nanoparticles (NP). These may serve as the basis of novel devices and photonic structures, and to enable additional functionalities in existing devices. The hybrid plasmon-electromagnetic excitations underlying this transport are plasmon polaritons. The project will be carried out in the group of David Citrin at Georgia Tech. The proposed research is of broad interest across several fields of electrical engineering and device physics. The key issues are to identify and study novel effects and to evaluate their suitability for device applications.Intellectual Merit: The proposed work seeks to facilitate the exploitation of nanoplasmonics by enabling new nonlinear devices and by enhancing the functionalities of existing devices. As such, the work may have widespread applicability to enable numerous applications in optoelectronics, photonics, biotechnology, and nanotechnology. The program will fill the gap between fundamental understanding of single NP's and the fabrication of devices. As such, the research will elucidate the mechanisms of electromagnetic transport in structures composed of metal NP's, and then use this knowledge to ascertain the feasibility and performance of novel device concepts.Broader Impact: Education of graduate and undergraduate students is a priority. The research, uniting nanotechnology with optoelectronics and photonics, provides excellent multidisciplinary training. A key component of the proposed project is to further cooperation between Schools at the Georgia Institute of Technology, including Electrical and Computer Engineering, Material Science and Engineering, and Chemistry. The PI is preparing for a new special topics course he will give Fall 2005 on Optical Nanostructures; metal NP's will form a module for the course. In addition, the work will contribute to the series of "Nanotalks" the PI has started to develop for undergraduates working in the group. We will also leverage off existing multidisciplinary structures, such as the Center for Optical Polymers at Georgia Tech. The results will be widely disseminated; they will be published in the engineering and scientific literature and presented at conferences. The work may enable new classes of linear and nonlinear, passive and active nanoscale photonic and optoelectronic devices. These include more traditional applications, such as interconnects, but also may emnable applications in biology and medicine in which the delivery of optical energy within regions of less than a wavelength is required.