Plasmonic Particles

Blue-shifts in the particle-plasmon resonance of gold nanoparticles (Au NPs) covered with a vanadium dioxide (VO2) film as the VO2 material undergoes a semiconductor-to-metal transition

Category

Modulation of Particle-Plasmons
For arrays of gold nanoparticles (Au NPs) coated with vanadium dioxide (VO2), the Au particle-plasmon resonance blue-shifts in the metallic phase of VO2 with respect to the semiconducting phase because of the smaller dielectric permittivity of the former. The combined effects of polarization and VO2 phase transition allow for plasmon resonance shifts up to 200 nm.

Poster
Dissertation Chapter

Publications
Au NPs in VO2 (Journal of Optics A: Pure and Applied Optics)
Simulations of Au NPs on Substrate (Applied Physics B)
Au NPs as Biosensors (Optics Express)