2001/07/31 by Rafael A. Molina, Dietmar Weinmann, Rodolfo A. Jalabert · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Gold and Silver Nanoparticles Synthesis and Applications #Plasmonic and Surface Plasmon Research #Spectroscopy and Quantum Chemical Studies #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.65.155427
published as Phys. Rev. B 65, 155427 (2002) · RevTeX4, 5 pages, 2 figures, final version
openalex publication_date 2002/04/05 · arxiv created 2002/04/09 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study the linewidth of the surface plasmon resonance in the optical absorption spectrum of metallic nanoparticles, when the decay into electron-hole pairs is the dominant channel. Within a semiclassical approach, we find that the electron-hole density-density correlation oscillates as a function of the size of the particles, leading to oscillations of the linewidth. This result is confirmed numerically for alkali and noble-metal particles. While the linewidth can increase strongly, the oscillations persist when the particles are embedded in a matrix.