2015/02/28 by Weihua Wang, Bohong Li, Bo-Hong Li +3 · 14 citations
Engineering · Materials Science · Physics and Astronomy · #Gold and Silver Nanoparticles Synthesis and Applications #Graphene #Graphene research and applications #Materials science #Nanotechnology #Optoelectronics #Plasmon #Plasmonic and Surface Plasmon Research #Surface plasmon #cond-mat.mes-hall #physics.optics
paper · pdf · doi:10.1039/c5nr08812g
published in Nanoscale 8(6), 3809-3815 (Royal Society of Chemistry)
openalex publication_date 2016/01/01 · arxiv created 2016/01/14 · arxiv updated 2016/03/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Localized surface plasmons are confined collective oscillations of electrons in metallic nanoparticles. When driven by light, the optical response is dictated by geometrical parameters and the dielectric environment and plasmons are therefore extremely important for sensing applications. Plasmons in graphene disks have the additional benefit of being highly tunable via electrical stimulation. Mechanical vibrations create structural deformations in ways where the excitation of localized surface plasmons can be strongly modulated. We show that the spectral shift in such a scenario is determined by a complex interplay between the symmetry and shape of the modal vibrations and the plasmonic mode pattern. Tuning confined modes of light in graphene via acoustic excitations, paves new avenues in shaping the sensitivity of plasmonic detectors, and in the enhancement of the interaction with optical emitters, such as molecules, for future nanophotonic devices.