Surface plasmons and vibrations of self-assembled silver nanocolumns.
Optical and vibrational properties of novel self-assembled silver nanocolumns are studied experimentally and theoretically. The split of the surface plasmon resonance into transverse and longitudinal modes verifies the one-dimensional character of the nanocolumns. In this work, we have identified the acoustic vibration modes of the nanocolumns using Raman scattering, as spheroid-like modes (l = 2, m = +/-2) involving vibrations of the nanocolumns along their minor axes and the existence of surface plasmon-vibration coupling mechanisms.
Margueritat
Jeremie
J
Laser Processing Group, Instituto de Optica, CSIC, Serrano 121, 28006 Madrid, Spain, and Laboratoire de Physique des solides, UMR 5477 CNRS, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 4, France. j.margueritat@io.cfmac.csic.es
Gonzalo
Jose
J
Afonso
Carmen N
CN
Mlayah
Adnen
A
Murray
Daniel B
DB
Saviot
Lucien
L
D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D008027:Light; D008422:Materials Testing; D008956:Models, Chemical; D008958:Models, Molecular; D043942:Nanotubes / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D010316:Particle Size; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties; D014732:Vibration