Figure 4
From: Laser-pointer-induced self-focusing effect in hybrid-aligned dye-doped liquid crystals
Laser-pointer-driven nonlinear optical effect.
(a) Sketch of the optical setup for the observation of the laser-pointer-driven nonlinear optical effect in a hybrid-aligned cell. (b) Typical laser-pointer-driven ring pattern generated from a hybrid-aligned cell (TR5: 0.03 mol%). A 1 mW commercially available laser pointer drives molecular reorientation, leading to self-focusing and self-phase modulation.
