4 papers
The role of focused laser plasmonics in shaping SERS spectra of molecules on nanostructured surfaces
Fran Nekvapil, Cosmin FarcÄu
The dependence of surface-enhanced Raman scattering (SERS) spectra on the precise axial position of the laser focus relative to a solid nanostructured substrate has received little…
Linear Arrays of Metal-Coated Microspheres: a Polarization-Sensitive Hybrid Colloidal Plasmonic-Photonic Crystal
Cosmin FarcÄu
Colloidal plasmonic-photonic crystals represent a class of hybrid materials composed of a dielectric colloidal spheres photonic lattice and a metal plasmonic film. In this work, th…
Metal-coated microsphere monolayers as surface plasmon resonance sensors operating in both transmission and reflection modes
Cosmin FarcÄu
Metal-coated microsphere monolayers (MCM) are a class of plasmonic crystals consisting of noble metal films over arrays of self-assembled colloidal microspheres. Despite their ease…
Metasurface Engineering with Tantalum Pentoxide-Coated Microspheres: Tailoring Optical Resonances and Enhancing Local Density of States
Alexandra FÄlamaÅ, Ana Maria M. Gherman, Renaud Vallée +1
Hexagonally-packed polystyrene microsphere monolayers coated with tantalum pentoxide (TaO) form scalable dielectric metasurfaces that support tunable photonic resonances an…