Thermally induced optical nonlinearity of chloroaluminiumphthalocyanine (ClAlPc) in
ethanol is studied in the regime of low laser powers using a cw He–Ne laser as the source of …

We report in this work on the simultaneous presence of both positive and negative nonlinear
optical (NLO) refractive indexes measured in methyl-red dye doped 5CB liquid crystal (LC) …

Semiconductor quantum dots (QDs) or nanocrystals are crystals with sizes smaller than their
respective Bohr radius in which the electron and hole energy levels are discrete rather than …

In this paper, we will study theoretically and experimentally the anisotropy of the thermal
diffusivity in nematic liquid crystals. We will show that the Baalss-Hess conformal …

In this work we report on measurements, as a function of the temperature, of the nonlinear
refractive indices parallel () and perpendicular () to the nematic director near the reentrant …