Optical resonances of dielectric and semiconductor nanoparticles for planar photonics and metasurfaces

用于平面光子学和超表面的介电和半导体纳米粒子的光学共振

• 批准号: 313688289
• 负责人: Dr. Andrey Evlyukhin
• 金额: --
• 依托单位: Institut für Quantenoptik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/313688289?language=en
• 关键词: Optical; resonances; dielectric; semiconductor; nanoparticles

The project is devoted to detailed theoretical and numerical investigations of the optical properties of arbitrarily shaped high refractive index dielectric nanoparticles and complex nanostructures composed from them. These particles and particle structures support strong resonant optical response and have huge potential for the realization of multi-functional metasurfaces and novel integrated optical components. The influences of nanoparticle shape, size, external environment, and illumination conditions will be considered. One of the main ideas of the project is to use multipole modes, higher than the dipole ones, which can be resonantly excited by light in high refractive index dielectric (semiconductor) nanoparticles for the design of metasurfaces and optical devices for a robust control and manipulation of light energy. For this purpose, we suggest to develop and use a novel theoretical approach based on discrete multipole approximation. This method will include a combination of electric and magnetic multipole polarizabilities of single nanoparticles together with the coupled-multipole equations.Additionally, investigation will include interactions of high refractive index dielectric (semiconductor) nanoparticles with surface electromagnetic waves (surface plasmon-polaritons) excited on metal-dielectric interfaces. Potential applications of nanoparticles and metasurfaces in flat displays, energy harvesting systems, and integrated optics will be considered. The project results will be visualized in computer experiments which will be realized as a software complex.

该项目致力于对任意形状的高折射率介电纳米粒子和由其组成的复杂纳米结构的光学性质进行详细的理论和数值研究。这些粒子和粒子结构支持强共振光学响应，并且在实现多功能超颖表面和新型集成光学元件方面具有巨大的潜力。将考虑纳米颗粒形状、尺寸、外部环境和照明条件的影响。该项目的主要思想之一是使用多极模式，高于偶极模式，它可以被高折射率介电（半导体）纳米颗粒中的光共振激发，用于设计超表面和光学设备，以实现对光能的鲁棒控制和操纵。为此，我们建议开发和使用一种新的理论方法的基础上离散多极近似。该方法将包括单个纳米颗粒的电和磁多极极化率与耦合多极方程的组合。此外，研究将包括高折射率电介质（半导体）纳米颗粒与金属-电介质界面上激发的表面电磁波（表面等离子体激元-极化激元）的相互作用。纳米粒子和超颖表面在平板显示器，能量收集系统和集成光学的潜在应用将被考虑。项目结果将在计算机实验中可视化，并将其实现为一个软件复合体。