Electromagnetic Wave Controlling by Atomic-Scale Plasmonics in Nanostructures

纳米结构中原子级等离激元控制电磁波

• 批准号: 59615044
• 负责人: Professorin Dr. Annemarie Pucci
• 金额: --
• 依托单位: Kirchhoff-Institut für Physik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/59615044?language=en
• 关键词: Electromagnetic; Wave; Controlling; Atomic; Scale

In this project, we will extensively explore atomic-scale plasmonics where the atomistic phenomena such as the band structure, lattice defects, quantum confinement, and shape/dimensionality effects in ultimately small objects determine the behaviour of the electromagnetic waves. Compared to the researches on the larger-scale plasmonics devices, the proposed project will open up a new route for exploring and controlling the electromagnetic waves in the infrared regime where diversity of application is expected from nano- and bio -technology /industries. By fully utilizing top-down and bottom-up nanofabrication techniques we will produce ID, 2D, and 3D patterned atomic-scale low dimensional metallic na restructure s together with precise controlling of defects. And by molding the plasmons into precisely fabricated small systems, we aim to explore and freely design the dielectric and optical properties of nanostructures for device applications. For the genuine lowdimensional systems such as atom chains, nearly no fundamental knowledge on plasmon is available and we will explore these systems in detail. Also, shape-controlled quasi-3D metal-nanoparticle arrays (grown in ultrahigh vacuum and, also, in wet-chemistry) are of special technological importance but not yet understood from the atomistic point of view. Their plasmon resonances are related to huge nearfield enhancement, which enables surface enhanced IR absorption (SEIRA), and we aim at developing the super-SEIRA-active device structure for the biosensing applications as well as laterally resolved nearfield IR spectroscopy.

在这个项目中，我们将广泛探索原子尺度等离子体，其中原子现象，如能带结构、晶格缺陷、量子限制和最终小物体的形状/维度效应，决定了电磁波的行为。与大型等离子体器件的研究相比，该项目将为红外波段的电磁波探测和控制开辟一条新的途径，有望在纳米和生物技术/工业中得到广泛的应用。通过充分利用自顶向下和自底向上的纳米加工技术，我们将生产出ID、2D和3D图图化的原子尺度低维金属纳米结构，并精确控制缺陷。通过将等离子体塑造成精确制造的小系统，我们的目标是探索和自由设计用于器件应用的纳米结构的介电和光学特性。对于真正的低维系统，如原子链，几乎没有关于等离子体激元的基础知识，我们将详细探讨这些系统。此外，形状控制的准三维金属纳米颗粒阵列（在超高真空和湿化学中生长）具有特殊的技术重要性，但尚未从原子的角度理解。它们的等离子体共振与巨大的近场增强有关，这使得表面增强红外吸收（SEIRA）成为可能，我们的目标是开发用于生物传感应用的超SEIRA有源器件结构以及横向分辨近场红外光谱。