Electron energy-loss spectroscopy (EELS) offers a window to view nanoscale properties and processes. When performed in a scanning transmission electron microscope, EELS can simultaneously render images of nanoscale objects with subnanometer spatial resolution and correlate them with spectroscopic information at a spectral resolution of ∼10-100 meV. Consequently, EELS is a near-perfect tool for understanding the optical and electronic properties of individual plasmonic metal nanoparticles and few-nanoparticle assemblies, which are significant in a wide range of fields. This review presents an overview of basic plasmonics and EELS theory and highlights several recent noteworthy experiments involving the interrogation of plasmonic metal nanoparticle systems using electron beams.

中文翻译：

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使用电子能量损失谱表征局部表面等离激元。

电子能量损失谱（EELS）提供了一个查看纳米级特性和过程的窗口。当在扫描透射电子显微镜中执行时，EELS可以同时渲染具有亚纳米级空间分辨率的纳米级物体的图像，并将它们与约10-100 meV的光谱分辨率的光谱信息相关联。因此，EELS是一种近乎完美的工具，可用于理解各个等离子金属纳米粒子和少数纳米粒子组件的光学和电子特性，这些特性在广泛的领域中都非常重要。这篇综述介绍了基本的等离激元学和EELS理论，并重点介绍了几个最近的值得注意的实验，涉及使用电子束询问等离激元金属纳米粒子系统。