Negative Refractive Index

负折射率

• 批准号: 0509589
• 负责人: Ildar Gabitov
• 金额: $ 20万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-07-15 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0509589&HistoricalAwards=false
• 关键词: Negative; Refractive; Index

Technical description: We will develop mathematical models andcomputational tools to analyze optical resonance phenomena innanostructured materials. The proposed research will focus on resonantinteraction of optical fields with metallic nanoparticles and onnegative refractive index phenomena in optical materials with doubleresonance (electric and magnetic field). We will study nonlinearcoupling of material and light excitations and their applications.Traditional resonant optics which is limited to exploiting resonanceof electric fields with atomic systems revolutionized science andtechnology by introducing lasers. Current development in nanomaterialfabrication makes it possible to add an additional resonantinteraction, that of a magnetic field with the embedded nanostructure.This brings exotic properties such as negative refractive index intothe optical domain. It is important to study the properties of suchmaterials using consistently derived equations that describe thedoubly resonant interaction. This is considerably more challengingthan simply including negative values for permittivity andpermeability. We will develop a description of the optical doubleresonance phenomena starting from first principles and analyze itsphysical consequences including negative refractive index. We willalso analyze the classical phenomena of nonlinear optics in doublyresonant materials. Our pilot research with ultra-short pulses hasalready shown that for very simple nanomaterials, optical controlusing phase, including trapping of light is feasible.Broader impact: This project will make important contributions to basic science. It can lead to applications in materials science andto high performance computing. One of the principle targets of thework is negative refractive index material. These materials could beof great practical value. Optimization of the design of suchmaterials will be a central result of our research and requires afundamental understanding of the nature of the interaction of lightand such nano-structures. One of the more important applications fornegative refractive index materials is superlenses. Such a lenspermits much improved focusing of light compared to currentcapabilities. This would allow production of electronic componentsusing photolithography with much higher densities and finer featuresleading to greatly increased computation power and lower cost. Inaddition, other types of nano-optical materials can lead to noveloptical logic devices and short term memory buffers. Designer opticalmaterials are very close to realization; their full potential willonly be realized if the fundamental physical and mathematical modelsare understood.

技术描述：我们将开发数学模型和计算工具来分析纳米结构材料中的光学共振现象。该研究将集中在光场与金属纳米颗粒的共振相互作用以及具有双共振（电场和磁场）的光学材料中的负折射率现象。 我们将研究物质和光激发的非线性耦合及其应用，传统的共振光学局限于利用电场与原子系统的共振，通过引入激光器使科学和技术发生了革命性的变化.目前纳米材料制造的发展使得增加一个额外的共振相互作用成为可能，即磁场与嵌入的纳米结构的相互作用，这就给光学领域带来了诸如负折射率之类的奇异特性。因此，研究这类材料的性质时，必须使用描述双共振相互作用的一致性推导方程。 这比简单地包括介电常数和磁导率的负值更具挑战性。我们将从第一性原理出发描述光学双共振现象，并分析其物理后果，包括负折射率。我们还将分析双共振材料中的经典非线性光学现象。 我们的超短脉冲初步研究已经表明，对于非常简单的纳米材料，利用相位进行光学控制，包括捕获光是可行的。更广泛的影响：该项目将对基础科学做出重要贡献。 它可以在材料科学和高性能计算中得到应用。 本课题的主要研究对象之一是负折射率材料。 这些材料可能具有很大的实用价值。 这种材料的优化设计将是我们研究的核心成果，需要对光与这种纳米结构相互作用的本质有基本的了解。 负折射率材料的一个重要应用是超透镜。 与现有的透镜相比，这样的透镜可以大大改善光的聚焦。这将允许使用光刻法生产具有更高密度和更精细特征的电子元件，从而大大提高计算能力和降低成本。此外，其他类型的纳米光学材料可以导致新颖的逻辑器件和短期存储缓冲器。设计光学材料是非常接近实现;他们的全部潜力将只有实现，如果基本的物理和数学模型被理解。