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Article | REF: NM900 V2

Gold nanoparticles

Author: Olivier PLUCHERY

Publication date: December 10, 2025 | Lire en français

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    6. Plasmonic properties (LSPR)

    6.1 Qualitative description of localized plasmon resonance

    Localized Surface Plasmon Resonance (LSPR) corresponds to a resonance of the electromagnetic field of the light wave with the free electrons of a metal. It occurs when a light wave interacts with metallic nanostructures whose radii of curvature are much smaller than the wavelength. This resonance is most often characterized by maximum light absorption for a band of wavelengths, and is caused by nanoparticles dispersed in a liquid medium or in a transparent solid.

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