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Facile Fabrication of Spherical Nanoparticle-Tipped AFM Probes for Plasmonic Applications
Particle & Particle Systems Characterization ( IF 2.7 ) Pub Date : 2014-08-12 , DOI: 10.1002/ppsc.201400104
Alan Sanders 1 , Liwu Zhang 1 , Richard W Bowman 1 , Lars O Herrmann 1 , Jeremy J Baumberg 1
Affiliation  

Recently, plasmonics has attracted extensive attention for its ability to enhance evanescent electric fields at nanometer spatial scales. Much research has become dedicated to the use of sharp metal tips as nanoscale optical antennae, exploiting surface plasmon resonances. Unlike planar metallic surfaces, tips support localized surface plasmons (LSPs) and benefit from strong field localization at the tip apex. This gives rise to a high spatial resolution when applied to existing plasmonic applications such as surface-enhanced Raman spectroscopy (SERS), leading to tip-enhanced Raman spectroscopy (TERS), which allows for high-resolution chemical mapping of surfaces.

中文翻译:

用于等离子体应用的球形纳米粒子尖端 AFM 探针的简便制造

最近,等离子体激元因其在纳米空间尺度上增强倏逝电场的能力而受到广泛关注。许多研究致力于使用锋利的金属尖端作为纳米级光学天线,利用表面等离子体共振。与平面金属表面不同,尖端支持局部表面等离子体 (LSP),并受益于尖端顶点处的强场定位。当应用于表面增强拉曼光谱 (SERS) 等现有等离子体应用时,这会产生高空间分辨率,从而导致尖端增强拉曼光谱 (TERS),从而可以对表面进行高分辨率化学映射。
更新日期:2014-08-12
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