Photopolarimetric characterization of the transition between two turbulentstates in a nematic liquid crystal film

This work was aimed at the photopolarimetric characterization of the transi tion between two dynamic scattering modes that take place in a planarly ali gned nematic liquid crystal sample, under the effect of an external low-fre quency electric field. The time evolution of the degree of polarization and the behavior of the radiation entropy of the transmitted light allow us to interpret the transition between two turbulent states, or dynamic scatteri ng modes, as a decay from a two-dimensional (2D) to a (3D) turbulence. [S10 63-651X(99)10204-6].