Deformations of scratches and cracks

Scratches and cracks made on and in AsS(Se) films anisotropically respond to Illumination of linearly polarized bandgap light. Trunov 

Photoinduced smoothing and widening of scratches parallel and perpendicular to the electric field of bandgap light [a] when linearly polarized illumination has just started and [b] after prolonged illumination. 

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