Interference patterns between photon excitation and plasmon mediated re-radiation are revealed on a metal nanoparticle basis. The plasmon-photon interaction is directly observed in the vicinity of silver nanoparticles through a near-field scanning optical microscope (NSOM). Isolated silver nanoparticles with different sizes on the pure quartz substrate are simultaneously fabricated through a high temperature annealing technique. Our results manifest that the correlation of phase-response and size-dependent optical enhancement can be further applied to control the spatial distribution of localized surface plasmon modes by means of framed nanostructures.
|Proceedings of SPIE - The International Society for Optical Engineering
|Published - 2009
|Quantum Dots, Particles, and Nanoclusters VI - San Jose, CA, United States
Duration: 25 Jan 2009 → 28 Jan 2009
- Near-field microscopy
- Subwavelength structures
- Surface plasmons