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Fabrication of 3D metallic micro/nanostructures by twophoton absorption

N. TOSA1,2,3, G. VITRANT4, P. L. BALDECK1, O. STEPHAN1, I. GROSU3

Affiliation

  1. Laboratoire de Spectrométrie Physique, Université Joseph Fourier, CNRS, BP 87, 38402 Saint Martin d’Hères, France
  2. National Institute for R&D of Isotopic and MolecularTechnologies,RO 400293 Cluj-Napoca, Romania
  3. Babes-Bolyai University, Organic Chemistry Department, RO 400028 Cluj-Napoca, Romania
  4. IMEP-LAHC, MINATEC, INPG-CNRS-UJF, BP 257, 38016 Grenoble, France

Abstract

We report on the fabrication of three-dimensional gold structures by two-photon absorption (TPA) reduction of gold salt, dispersed in a polymer host. In this work we developed an efficient method that overcomes the thermal effect pointed out by the double-line obtained by TPA reduction in solid thin films. We show that optimized experimental conditions allow us to generate a metallic single wire deposition, and to fabricate regular and well-defined 3D gold microstructure embedded in a dielectric matrix. This direct 3D controlled metal photo-deposition procedure may be useful to create diffraction gratings with spectral filtering properties..

Keywords

Two-photon absorption, thermal effect, single nanowire, 3D gold structures.

Submitted at: Feb. 25, 2008
Accepted at: Aug. 28, 2008

Citation

N. TOSA, G. VITRANT, P. L. BALDECK, O. STEPHAN, I. GROSU, Fabrication of 3D metallic micro/nanostructures by twophoton absorption, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 9, pp. 2199-2204 (2008)