Novel optical properties of metallic nanocavities

金属纳米腔的新颖光学特性

• 批准号: 0622225
• 负责人: Steven Blair
• 金额: --
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2010-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0622225&HistoricalAwards=false
• 关键词: Novel; optical; properties; metallic; nanocavities

Novel optical properties of metallic nanocavities0622225Steve BlairUniversity of UtahIntellectual Merit: Plasmonic nanophotonics has been an extremely active research area in recent years, but there remain directions for exploration rich with opportunities for new discoveries and implications for a new generation of engineered photonic devices. The purpose of this research is to explore the emission and energy transfer properties of molecules and quantum dots located within and nearby metal nanocavities; these studies are designed with device applications in mind. A complete picture of the excitation and radiative enhancement mechanisms in metallic nanocavities has yet to be painted; this research will systematically study these enhancement mechanisms and their optimization. One important outcome of these studies lies in the comparison of nanocavity enhancements to published enhancements associated with nanoparticles, which have received much greater attention. In addition, studies of energy transfer mechanisms between donor and acceptor species located within and in proximity to metallic nanocavities will be performed. Overall, these studies have important implications to nanosensors and efficient light-emitting and energy-harvesting devices. Broader Impact: The new generation of nanophotonic devices will have broader impacts with strong societal implications. For example, highly sensitive nanoscale moleculear transducers can form the basis for a new type of microarray which can be used to screen across many thousands of low copy number target species from small initial sample volumes, thus mitigating the need for amplification steps. These types of inexpensive, compact, and highly sensitive microarrays will usher in the new era of personalized medicine, where genetic profiles will be used in the diagnosis and treatment of disease. Students involved in this research will experience an inherently cross-disciplinary environment at the forefront of nanocavity research, which incorporates elements from Electrical Engineering, Bioengineering, Physics, and Chemistry and they will have collaborative opportunities with counterparts from other, international, research groups.

金属纳米腔的新光学性质0622225犹他大学的史蒂夫·布莱尔（Steve Blair）智力优势：近年来，等离子体纳米光子学一直是一个非常活跃的研究领域，但仍有许多探索方向，这些方向充满了新发现的机会，并对新一代工程光子器件产生影响。本研究的目的是探索位于金属纳米腔内部和附近的分子和量子点的发射和能量转移特性;这些研究是根据器件应用而设计的。 金属纳米腔中的激发和辐射增强机制的全貌尚未绘制;本研究将系统地研究这些增强机制及其优化。这些研究的一个重要成果在于将纳米腔增强与已发表的与纳米颗粒相关的增强进行比较，后者受到了更大的关注。此外，将进行位于金属纳米腔内部和附近的供体和受体物种之间的能量转移机制的研究。 总的来说，这些研究对纳米传感器和高效的发光和能量收集设备具有重要意义。更广泛的影响：新一代纳米光子设备将产生更广泛的影响，并具有强烈的社会影响。例如，高灵敏度的纳米级分子传感器可以形成新型微阵列的基础，该微阵列可以用于从小的初始样品体积中筛选数千个低拷贝数的靶物种，从而减轻对扩增步骤的需要。 这些类型的廉价，紧凑和高灵敏度的微阵列将迎来个性化医疗的新时代，其中遗传图谱将用于疾病的诊断和治疗。 参与这项研究的学生将在纳米腔研究的最前沿体验到一个固有的跨学科环境，该环境融合了电气工程，生物工程，物理和化学的元素，他们将与来自其他国际研究团体的同行合作。