Evanescent signal detection and enhanced resolution with random silver nanoparticles

W.-C. Liu, Din-ping Tsai

Research output: Journal article publicationJournal articleAcademic researchpeer-review


Inspired by the subwavelength resolution capability of the super-resolution near-field structure, a simplified optical structure was proposed to investigate the complicated near-field optical interactions between random silver nanoparticles and evanescent waves from a zeroth-order grating. The simplified structure consisted of a glass thin film embedded with random silver nanoparticles on a zeroth-order glass grating. The near-field and far-field optical properties of this structure were investigated by the finite-difference time-domain (FDTD) numerical simulations and the optical resolution beyond diffraction limit was demonstrated.
Original languageEnglish
Issue number5 SUPPL.
Publication statusPublished - 1 Nov 2004
Externally publishedYes


  • Finite-difference time-domain method
  • Localized surface plasmon
  • Metallic nanoparticles
  • Near-field optical probe

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Instrumentation


Dive into the research topics of 'Evanescent signal detection and enhanced resolution with random silver nanoparticles'. Together they form a unique fingerprint.

Cite this