The nonlinear optical properties of fish gelatin, potassium dichromate, and a mix of both are
presented. The z-scan experimental technique and the photo-induced thermal lens …

The interaction of a laser with a liquid can cause temperature changes in the liquid from
which some properties of the latter can be indirectly obtained. However, from just …

In this paper, the Z-scan theory for nonlocal nonlinear media has been further developed
when nonlinear absorption and nonlinear refraction appear simultaneously. To this end, the …

Thermal lens and Z-scan have been the two most important and used techniques for
determining third-order nonlinear optical properties and photothermal properties of optical …

Biosynthesis of four samples of colloidal suspensions of gold nanoparticles is achieved
using hydroalcoholic extract and three different separated compounds of the plant Bacopa …

In this work, we present a study of the nonlinear absorption properties from different gold
nanorod (NR) systems in aqueous suspension. The NRs were obtained with the bottom-up …

We propose a modified mathematical model of thermal optical nonlinearities which allow us
to obtain the nonlinear refraction index and the nonlinear absorption coefficient with only …

A simple and sensitive technique, based on Fresnel diffraction from phase objects, is
proposed for specifying the nonlinear refractive index of a sample. In this technique, the …

Analytical expressions for the normalized transmittance of a thin material with simultaneous
nonlocal nonlinear change in refraction and absorption are reported. Gaussian …

In this work we present a study of nonlinear optical properties in organic materials (hibiscus
sabdariffa). Our results demonstrate that the medium exhibits a highly nonlocal nonlinear …