Near-Field Optics and Spectroscopy for Molecular Nano-Imaging
Near-Field Optics and Spectroscopy for Molecular Nano-Imaging
复制标题
DOI：
10.3184/003685004783238580
复制
发表时间：
2004-02
期刊：
影响因子：
2.1
通讯作者：
S. Kawata;Y. Inouye;T. Ichimura
中科院分区：
文献类型：
--
作者：
S. Kawata;Y. Inouye;T. Ichimura
将带有锋利金属探针的近场光学显微镜应用于拉曼光谱，可将材料的微量分析应用于纳米识别和成像。探针尖端上的局部等离子体激元激发导致尖端附近光场的定位和放大。尖端增强近场拉曼光谱以纳米级空间分辨率和足够的灵敏度分析了DNA碱基分子和单壁碳纳米管（SWNT）。结合尖端加压和非线性效应，尖端增强的近场拉曼光谱可提供额外的光谱信息或提高空间分辨率和灵敏度。本文介绍了针尖增强近场拉曼光谱与成像的最新进展。
Application of near-field optical microscopy with a sharp metallic probe to Raman spectroscopy brings microanalysis of materials to their nano-identification and imaging. The local plasmon polariton excitation on the probe tip results in the localization and amplification of the optical field at the vicinity of the tip. The tip-enhanced near-field Raman spectroscopy has analyzed DNA base molecules and single-walled carbon nanotubes (SWNTs) with the nanometric spatial resolution and sufficient sensitivity. Combined with tip pressurization and nonlinear effects, the tip-enhanced near-field Raman spectroscopy gives additional spectral information or improves the spatial resolution and sensitivity. This article introduces the recent progresses on the tip-enhanced near-field Raman spectroscopy and imaging.