Applied Physics B

, Volume 95, Issue 3, pp 579–587

Considerations about Z-scan sensitivity improvement: theory versus experiments

Authors

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

DOI: 10.1007/s00340-009-3459-2

Cite this article as:
Godin, T., Fromager, M., Päivänranta, B. et al. Appl. Phys. B (2009) 95: 579. doi:10.1007/s00340-009-3459-2
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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

Copyright information

© Springer-Verlag 2009