Nanocrystal composite thin films produced by pulsed laser deposition for nonlinear optical applications

C. N. Afonso*, R. Serna, J. M. Ballesteros, J. Solís, A. K. Petford-Long, R. C. Doole

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

This paper presents recent results on the synthesis by pulsed laser deposition (PLD) and optical properties of composite thin films consisting of metallic nanocrystals embedded in an amorphous host. The films are grown by alternate ablation of the metal and host targets in vacuum by means of an ArF laser. The results show that PLD is a very promising technique for producing these materials with nanocrystals of controlled size and in-depth distribution. The analysis of the structure of the films as a function of the number of laser pulses in the metal target allow us to discuss the nanocrystals growth mechanism. A survey of works reporting the synthesis of similar films with metallic nanocrystals embedded in an insulator host and exhibiting third order optical nonlinearities is included, which evidences that the films grown by PLD have excellent properties for waveguide applications.

Original languageEnglish (US)
Pages (from-to)74-83
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3404
DOIs
StatePublished - Dec 1 1997
EventALT 1997 International Conference on Laser Surface Processing - Limoges, France
Duration: Sep 8 1997Sep 12 1997

Keywords

  • AlO
  • Bi
  • Cu
  • Ge
  • Metallic nanocrystals
  • Nonlinear optics
  • Pulsed laser deposition (PLD)
  • Thin films
  • Third order susceptibility
  • Waveguides

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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