4. Localized surface plasmons

In this section, without going into detail, we introduce localized surface plasmons and their various characteristics.

When the metal's dimensions are much smaller than the incident wavelength, the symmetry of the resonant electron cloud differs significantly from the classical case. This gives rise to another type of plasmon, localised surface plasmon resonance (LSPR). In the case of a metal nanosphere, electrons on the surface of the particle can oscillate in phase when excited by an incident electromagnetic wave, as illustrated in figure

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Localized surface plasmons

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page Techniques for exciting surface plasmons at a planar metal-dielectric interface

Some applications

Bibliography

(1) - WOOD (R.W.) - On a remarkable case of uneven distribution of light in a diffraction grating spectrum. - Proceedings of the Physical Society of London, 18, p. 269 (1902).
(2) - FANO (U.) - The theory of anomalous diffraction gratings and of quasi-stationary...

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Conference : META – International Conference on Metamaterials, Photonic Crystals and Plasmonics. Conference held each year at a different location http://metaconferences.org

Conference : SPP – International Conference on Surface Plasmon Photonics. Conference held every two years at a different venue. Different website for each edition....