Shape-sensitive inelastic scattering from metallic nanoparticles

Apell P.S., Mukhopadhyay G., Antosiewicz T.J., Aizpurua J.

Advances in Quantum Chemistry

85, 2022, 17-30, 10.1016/bs.aiq.2022.04.001

We investigate the interplay of shape changes and localized surface plasmons in small metal particles with the potential of a large enhancement of the inelastic signal from the particles’ own vibrations. The framework is a geometrical one where we study the change in geometric factors during the vibrational movement. The resulting cross-section is found to be of a detectable order of magnitude, however, much smaller than the elastic cross-section.