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26 August 2005 Absorption spectroscopy and identification of single metal nanoparticles
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Abstract
Optical absorption spectroscopy of a single nanoparticle is performed using a spatial-modulation microscope combined with a white-light supercontinuum source. The absolute values of the extinction cross-section of isolated 16nm size gold nanoparticles are determined around their surface plasmon resonance. Measurements performed as a function of the linear light polarization permit to optically identify the properties of an individual particle: size, shape and orientation on the substrate. The statistics of this optically deduced properties are found in excellent agreement with those obtained with transmission electron microscopy.
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Otto Muskens, Natalia Del Fatti, and Fabrice Vallee "Absorption spectroscopy and identification of single metal nanoparticles", Proc. SPIE 5927, Plasmonics: Metallic Nanostructures and Their Optical Properties III, 59270N (26 August 2005); https://doi.org/10.1117/12.614893
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