Abstract
The laser beam shape and variation of the curvature radius of the wavefront have been simulated when the Gaussian laser beam passes through a dye-doped nematics liquid crystal. The effect of different dyes is investigated in the wavefront distortion as well as the beam shape due to its quality factor. We have reported the dependency of the curvature radius of the wavefront to the nonlinearity of the sample. Also we have obtained the beam shape of three dyes doped nematic liquid crystal as a nonlinear optical material compared with the experimental results.
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