The phase distribution of Near-field optical enhancement in a metal nanoparticle

Hsing Ying Lin, Chih Han Chang, Chen Han Huang, Hsiang Chen Chui

Research output: Contribution to journalConference articlepeer-review


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.

Original languageEnglish
Article number722412
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2009
EventQuantum Dots, Particles, and Nanoclusters VI - San Jose, CA, United States
Duration: 25 Jan 200928 Jan 2009


  • Nanostructures
  • Near-field microscopy
  • Subwavelength structures
  • Surface plasmons


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