Two-photon fabrication of three-dimensional metallic nanostructures for plasmonic metamaterials

Atsushi Ishikawa, Takuo Tanaka

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We propose a novel laser fabrication technique based on two-photon-induced reduction of metal ions for 3D metallic micro/nanostructures. Electrically conductive silver nanostructures with arbitrary 3D shape are demonstrated. By introducing dopant surfactant molecules, which prohibit unwanted metal growth, we demonstrate considerable improvement of the reduction properties to achieve a spatial resolution down to 120 nm. Plasmonic metamaterials fabricated using this technique exhibit magnetic resonances with negative permeability at far-infrared frequencies.

Original languageEnglish
Pages (from-to)11-15
Number of pages5
JournalJournal of Laser Micro Nanoengineering
Volume7
Issue number1
DOIs
Publication statusPublished - Feb 2012
Externally publishedYes

Fingerprint

Metamaterials
magnetic resonance
Nanostructures
metal ions
permeability
Photons
spatial resolution
surfactants
silver
Fabrication
fabrication
photons
Magnetic resonance
metals
lasers
Metal ions
molecules
Silver
Surface active agents
Doping (additives)

Keywords

  • 3D metallic nanostructures
  • Laser fabrication
  • Photoreduction of metal ions
  • Plasmonic metamaterials
  • Two-photon absorption

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

Two-photon fabrication of three-dimensional metallic nanostructures for plasmonic metamaterials. / Ishikawa, Atsushi; Tanaka, Takuo.

In: Journal of Laser Micro Nanoengineering, Vol. 7, No. 1, 02.2012, p. 11-15.

Research output: Contribution to journalArticle

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