Light beam steering in chiral nematic liquid crystals

In the paper the steering possibility of nonlinear light beam in chiral nematics film are presented. We measured the propagation of light beam at the distance of few millimeters and the nonlinear self-focusing was observed for a light power of order of few tenths of milliwatts. Additional, in a waveguide induced by the nematicon, other low-power light beam (signal beam) with different wavelength was trapped. The experimental results are in a good agreement with theoretical predictions and numerical simulation.