Applied Physics B

, Volume 95, Issue 3, pp 579–587

Considerations about Z-scan sensitivity improvement: theory versus experiments

  • T. Godin
  • M. Fromager
  • B. Päivänranta
  • N. Passilly
  • G. Boudebs
  • E. Cagniot
  • K. Ait-Ameur
Article

Abstract

This paper reports an experimental demonstration of the improvement of the Z-scan technique’s sensitivity. It is shown that this sensitivity can be multiplied by a factor equal to almost 400 with the help of simple binary diffractive elements. Such a possibility was actually predicted theoretically in one of our previous papers. In this study, the interpretation is investigated in a wider context taking into account the definition of the signal normalisation as introduced by Z-scan and the well-known eclipsing Z-scan (EZ-scan) experiments. In particular, advantages and drawbacks are compared, by looking at the normalised or the unnormalised aperture transmission.

PACS

42.25.Fx 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • T. Godin
    • 1
  • M. Fromager
    • 1
  • B. Päivänranta
    • 2
  • N. Passilly
    • 2
  • G. Boudebs
    • 3
  • E. Cagniot
    • 1
  • K. Ait-Ameur
    • 1
  1. 1.Centre de Recherche sur les Ions, les Matériaux et la Photonique, UMR 6252CEA-CNRS-ENSICAEN et Université de Caen, CIMAP-ENSICAENCaenFrance
  2. 2.Department of Physics and MathematicsUniversity of JoensuuJoensuuFinland
  3. 3.Laboratoire des Propriétés Optiques des Matériaux et Applications, FRE CNRS 2988Université d’AngersAngersFrance

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