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Two-photon laser deposition of gold nanowires

N. TOSA1,2,* , G. VITRANT3, P.L. BALDECK1, O. STEPHAN1, S. ASTILEAN4, I. GROSU2

Affiliation

  1. Laboratoire de Spectrométrie Physique, Université Joseph Fourier, CNRS (UMR 5588), BP 87, 38402 Saint Martin d’Heres Cedex, France
  2. Babes-Bolyai University, Organic Chemistry Department, RO 400028 Cluj-Napoca, Romania
  3. IMEP, INPG-CNRS-UJF (UMR 5130), BP 257, 38016 Grenoble Cedex 1, France
  4. Babes-Bolyai University, Optics and Molecular Spectroscopy Department, RO 400084 Cluj-Napoca, Romania

Abstract

We report on the fabrication of gold nanostructures by direct laser writing. Such metallic structures are obtained by reduction and precipitation of the corresponding metallic ions we have included in the polymer host. The reduction is initiated by two-photon absorption of the femtosecond laser. In this paper we show that the chemical composition of the active mixture as well as the laser power has a strong influence on the fabricated structure. We show that optimized conditions permit the fabrication of very regular structures whose dimension can vary from several microns to a few hundreds of nanometers. A model is proposed which predicts variation laws in good agreement with experiments..

Keywords

Two-photon absorption, Photo-induced metallic precipitation, Polymer host, Gold nanostructures.

Submitted at: Nov. 15, 2006
Accepted at: March 15, 2007

Citation

N. TOSA, G. VITRANT, P.L. BALDECK, O. STEPHAN, S. ASTILEAN, I. GROSU, Two-photon laser deposition of gold nanowires, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 3, pp. 641-645 (2007)