4.6 Article

Nearfield surface enhanced spectroscopy using targeted nanoparticle deposition

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APPLIED PHYSICS LETTERS
卷 92, 期 12, 页码 -

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AMER INST PHYSICS
DOI: 10.1063/1.2891085

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Surface enhanced spectroscopy is demonstrated by depositing gold nanoparticles on a surface using an atomic force microscope. A modified dip pen nanolithography process is used to place particles directly on to a target. Near-field optical enhancement is demonstrated for Raman and infrared spectroscopies and is applicable for fluorescence spectroscopy. This approach provides localized, near-field spectroscopy with subdiffraction limit resolution and a general method for fabricating plasmonic device structures. (C) 2008 American Institute of Physics.

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