FDTD simulation of tapered structure of near-field fiber probe

Hiroaki Nakamura, Toshiharu Saiki, Hirotomo Kambe, Keiji Sawada

Research output: Contribution to journalArticle

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

Fingerprint

finite difference time domain method
near fields
Waveguides
Metal cladding
apertures
Light propagation
fibers
Fibers
probes
Finite difference time domain method
waveguides
Optical fibers
simulation
Electric fields
metals
spatial resolution
optical fibers
Metals
conduction
propagation

Keywords

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

ASJC Scopus subject areas

  • Computer Science Applications
  • Physics and Astronomy(all)

Cite this

FDTD simulation of tapered structure of near-field fiber probe. / Nakamura, Hiroaki; Saiki, Toshiharu; Kambe, Hirotomo; Sawada, Keiji.

In: Computer Physics Communications, Vol. 142, No. 1-3, 15.12.2001, p. 464-467.

Research output: Contribution to journalArticle

Nakamura, Hiroaki ; Saiki, Toshiharu ; Kambe, Hirotomo ; Sawada, Keiji. / FDTD simulation of tapered structure of near-field fiber probe. In: Computer Physics Communications. 2001 ; Vol. 142, No. 1-3. pp. 464-467.
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