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Investigation of third order nonlinear optical properties in ZnO:Al thin films

Y. HAMAIZI1,2,* , W. BALA3,4, B. KRAJEWSKI3, Z. ESSAÏDI1, A. EL-AKRMI2

Affiliation

  1. Laboratory of Optical Properties of Materials and Applications (POMA), UMR CNRS 6136, University of Angers. 2, Bd Lavoisier, 49045 Angers, France
  2. Radiation Physics Laboratory, Department of Physics, P.O.Box 12, University of Badji Mokhtar, 23000 Annaba, Algeria
  3. Institue of Physics, N. Copernicus University, Grudziądzka 5/7, 87-100 Torun, Poland
  4. Institute of Physics, Kazimierz Wielki University, Weyssenhoff Sq. 11, 85-072 Bydgoszcz, Poland

Abstract

Third harmonic generation (THG) in thin films of zinc oxide doped aluminium (ZnO:Al) was studied. The thin layers were deposited on glass substrates by the dip-coating technique. Third order nonlinear optical effect were investigated by Maker fringes method for samples annealed at temperature varying between 390 °C and 600 °C, as well as for the samples with different thicknesses. It is observed that the third order nonlinear optical property increases for samples post-heated above 445 °C due to the crystallisation of ZnO:Al films. This effect is also observed as thickness of samples increases from 2 to 8 deposited layers. The influence of deposition parameters on the film quality and THG efficiency is also discussed..

Keywords

ZnO, ZnO:Al, Nonlinear optical properties, Third harmonic generation (THG).

Submitted at: Oct. 3, 2007
Accepted at: Dec. 7, 2007

Citation

Y. HAMAIZI, W. BALA, B. KRAJEWSKI, Z. ESSAÏDI, A. EL-AKRMI, Investigation of third order nonlinear optical properties in ZnO:Al thin films, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 12, pp. 3715-3719 (2007)