We carried out Z-scan measurements on lyotropic liquid crystals and on lyotropic liquid
crystals doped with ferrofluid. In these experiments, the sample is translated through the …

We present a detailed theoretical calculation, with experimental verification, of the nonlocal
molecular reorientation of the nematic-liquid-crystal director axis induced by a cw Gaussian …

Multiple light scattering from thermal fluctuations is studied in single-domain nematic liquid
crystals. These systems are uniaxial so that diffusion of light may be anticipated to be …

We demonstrate a new Z-scan measurement technique that permits the use of non-
Gaussian beams and thick, as well as thin, samples. We expect that this technique will make …

A generalization of the thermal lens model formalism is proposed to introduce and
characterize the thermodiffusion phenomenon. The theory treats the case in which local …

Using a TEM 00q near Gaussian mode ruby laser system we report the first experimental
measurements of intensity induced changes of optical polarization (ellipse rotation) in a …

We analyze the limitations imposed by sample absorption on the determination of the
nonlinear refractive index by the Z-scan technique. By using a nanostructured thin film …

Based on Fresnel–Kirchhoff diffraction theory, a diffraction model of nonlinear optical media
interacting with a Gaussian beam has been set up that can interpret the Z-scan …

Interplay between nonlocality and nonlinearity in nematic liquid crystals clickable element to
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Optical excitation of half-leaky guided modes has been used, for the first time to our
knowledge, to characterize in detail the optical tensor profile in a liquid-crystal layer. The thin …