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Two-Photon absorption cross-section measurement by thermal lens and nonlinear transmission methods in organic materials at 532 nm and 1064 nm laser excitations

A. TAOURI1,2, H. DERBAL1, J. M. NUNZI1, R. MOUNTASSER2, M. SYLLA1,*

Affiliation

  1. Laboratoire des Propriétés Optiques des Matériaux et Applications, UMR-CNRS 6236, 2, Bd Lavoisier 49045 Angers Cedex, France
  2. Département de Physique, Faculté des sciences et technique (FSTM), Université Hassan II, BP 146. Mohammedia 20650 Maroc

Abstract

Experimental results concerning two-photon absorption (TPA) cross-section measurement using nonlinear transmission (NLT) method and a new pump-probe mode-mismatched thermal lens (TL) scheme, in picosecond regime are reported. Both methods are used in a prospect of comparison. Values of the TPA coefficient and cross-section in three common solvents (Chloroform, Benzene and Nitrobenzene) and new synthesized perylenediimide derivatives (PDI) at 532nm and 1064nm wavelengths are given..

Keywords

Thermal lens, Z-scan, nonlinear absorption.

Submitted at: Nov. 2, 2009
Accepted at: Nov. 19, 2009

Citation

A. TAOURI, H. DERBAL, J. M. NUNZI, R. MOUNTASSER, M. SYLLA, Two-Photon absorption cross-section measurement by thermal lens and nonlinear transmission methods in organic materials at 532 nm and 1064 nm laser excitations, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 11, pp. 1696-1703 (2009)