FDTD simulation of tapered structure of near-field fiber probe

Hiroaki Nakamura, Toshiharu Saiki, Hirotomo Kambe, Keiji Sawada

Research output: Contribution to journalConference article

13 Citations (Scopus)

Abstract

The finite-difference time-domain method was employed to simulate light propagation in tapered near-field fiber probes with several small metal apertures. By conducting large-volume simulations, including tapered metal-cladding waveguide and connected optical fiber waveguide, we illustrated the coupling between these guiding modes as well as the electric field distribution in the vicinity of the aperture. The dependence of the spatial resolution and the collection efficiency on the aperture diameter were reproduced.

Original languageEnglish
Pages (from-to)464-467
Number of pages4
JournalComputer Physics Communications
Volume142
Issue number1-3
DOIs
Publication statusPublished - 2001 Dec 15
Externally publishedYes
EventConference on Computational Physics (CCP'2000) - Gold Coast, Qld., Australia
Duration: 2000 Dec 32000 Dec 8

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Keywords

  • Aperture probe
  • Collection efficiency
  • FDTD
  • Finite-difference time-domain method
  • NSOM
  • Near-field scanning optical microscopy
  • Taper structure

ASJC Scopus subject areas

  • Hardware and Architecture
  • Physics and Astronomy(all)

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