Evanescent signal detection and enhanced resolution with random silver nanoparticles

Wei Chih Liu, Din Ping Tsai

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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
Pages (from-to)I94-I97
JournalScanning
Volume26
Issue number5 SUPPL.
Publication statusPublished - 2004 Nov 1

Fingerprint

signal detection
Signal detection
near fields
Silver
silver
Nanoparticles
Glass
nanoparticles
gratings
Optical properties
glass
Diffraction
evanescent waves
Thin films
far fields
Computer simulation
optical properties
thin films
diffraction
simulation

Keywords

  • 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

Cite this

Evanescent signal detection and enhanced resolution with random silver nanoparticles. / Liu, Wei Chih; Tsai, Din Ping.

In: Scanning, Vol. 26, No. 5 SUPPL., 01.11.2004, p. I94-I97.

Research output: Contribution to journalArticle

Liu, Wei Chih ; Tsai, Din Ping. / Evanescent signal detection and enhanced resolution with random silver nanoparticles. In: Scanning. 2004 ; Vol. 26, No. 5 SUPPL. pp. I94-I97.
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