Experimental study of the linear and nonlinear optical properties of silver nanowires and the spatio-temporal control of the propagation of excited plasmons

银纳米线线性和非线性光学特性及激发等离激元传播时空控制的实验研究

• 批准号: 170845890
• 负责人: Dr. Barbara Wild
• 金额: --
• 依托单位: James Franck Institute
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/170845890?language=en
• 关键词: Experimental; study; linear; nonlinear; optical

Surface Plasmons are propagating electromagnetic surface modes confined at a metal-dielectric interface due to the resonant interaction of the electromagnetic wave with the free electron gas of the metal. In this research program Surface Plasmons in silver nanowires will be studied. Nanowires with a length greater than 1 μm can support Fabry-Perot modes. Such modes of an individual nanowire will be investigated by total-internal reflectivity spectroscopy.The full amplitude and phase of the Plasmon modes excited by ultrashort optical pulses will be characterized using spectral interferometry. This detailed information will make it possible to optimize the pulse shape, using learning algorithms to provide complex waveforms in order to obtain a full spatio-temporal control of the Plasmon modes.

由于电磁波与金属的自由电子气体的共振相互作用，表面等离子体是被限制在金属-介电界面上的传播电磁表面模式。本课题主要研究银纳米线中的表面等离子体激元。长度大于1 μm的纳米线可以支持Fabry-Perot模式。单个纳米线的这种模式将通过全内反射率光谱进行研究。利用光谱干涉法对超短光脉冲激发的等离子体模的全振幅和相位进行了表征。这些详细的信息将使优化脉冲形状成为可能，使用学习算法来提供复杂的波形，以便获得等离子体模式的完整时空控制。