Laser-induced modification of the nonlinear optical response of laser-deposited Cu:Al2O3 nanocomposite films

R. Serna*, J. M. Ballesteros, J. Solis, C. N. Afonso, D. H. Osborne, R. F. Haglund, A. K. Petford-Long

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Nanocomposite films of metal Cu clusters embedded in an Al2O3 matrix are fabricated by alternate pulsed laser deposition from pure metallic Cu and ceramic Al2O3 targets. Their nonlinear index of refraction n2 and absorption coefficient β are determined by the Z-scan technique. It is observed that upon laser exposure, the values of characteristic nonlinear optical parameters change as a function of the pump power used. These changes are related to an irreversible transformation of the films, involving modifications of the Cu clusters.

Original languageEnglish (US)
Pages (from-to)96-99
Number of pages4
JournalThin Solid Films
Volume318
Issue number1-2
DOIs
StatePublished - Apr 15 1998

Keywords

  • Cu:AlO nanocomposite films
  • Laser-induced modification
  • Z-scan technique

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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