NLOQO HomeIssue Contents

Nonlinear Optical Characterization of Functionalized Organometallic Complexes Using THG and Z-scan Techniques
J. Luc, G. Bouders, C. Cassagne, C. Fillaut, A. Meghea, I. Rau, A. Migalska-Zalas, M. Bakasse and B. Sahraoui

We report the measurements of third-order nonlinear optical (NLO) properties in picosecond regim of functionalized organometallic complexes using third harmonic generation (THG) and Z-scan techniques. We show the results obtained for solutions dissolved in dichloromethane with different concentrations. For each chromophore, we give the values of: the nonlinear absorption coefficient β, the nonlinear refractive index n2, the third-order nonlinear susceptibility χ 3 and the second-order nonlinear hyperpolarisability γ of individual molecules. This approach allowed us to determine also the electronic and rotational contributions of χ 3 by using a picosecond laser Nd:YAG at the fundamental wavelength 1064 nm.

Full Text (IP)