Surface inspection by monitoring spectral shifts of localized plasmon resonances.
We present a numerical study of the spectral variations of localized surface plasmon resonances (LSPR) in a 3D-probe metallic nanoparticle scanned over an inhomoegeneous dielectric surface. The possibilities for both, index monitoring and lateral resolution at nanoscale level are explored, with special attention paid to the shape of the probe and the profile of the near field underneath.
Albella
P
P
Departamento de Física Aplicada, Grupo de Optica, Universidad de Cantabria, Santander, Spain. albellap@unican.es
Moreno
F
F
Saiz
J M
JM
González
F
F
D003198:Computer Simulation; D008422:Materials Testing / Q000379:methods*; D008670:Metals / Q000737:chemistry*; D008962:Models, Theoretical; D053758:Nanoparticles / Q000737:chemistry*; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties
D008670:Metals