  We propose a semi-analytical modeling of smoothed laser beams deviation
induced by plasma flows. Based on a Gaussian description of speckles, the model
includes spatial, temporal and polarization smoothing techniques,through fits
issued from hydrodynamic simulations with a paraxial description of
electromagnetic waves. This beam bending model is then included in a ray
tracing algorithm, and carefully validated. When applied as a post-process to
the propagation of the inner cone in a full-scale simulation of a NIF
experiment,the beam bending along the path of the laser affects the refraction
conditions inside the hohlraum and the energy deposition, and could explain the
anomalous refraction measurements, the so-called glint observed in some NIF
experiments.
