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Z-scan and optical limiting properties of Hibiscus Sabdariffa dye

The intensity-dependent refractive index n2 and the nonlinear susceptibility X(3) of Hibiscus Sabdariffa dye solutions in the nanosecond regime at 532 nm are reported. More presicely, the variation of n2, b, and real and imaginary parts of X(3) versus the natural dye extract concen- tration has been carried out by z-scan and optical limiting techniques. The third-order nonlinearity of the Hibiscus Sabdariffa dye solutions was found to be dominated by nonlinear refraction, which leads to strong optical limiting of laser.

Auteur(s) : A. Diallo, S. Zongo, P. Mthunzi, S. Rehman, S. Y. Alqaradawi, W. Soboyejo, M. Maaza
Pages : 861-867
Revue : Applied Physics B Lasers and Optics
N° de volume : 117
Type : Article
Mise en ligne par : DIALLO Abdoulaye