Laser writing on oriented polymer films

Polymer films are suitable substrates for optical data storage due to their mechanical and optical properties. Furthermore, oriented polymer films show an additional effect to laser writing. In this review the effects of laser writing on oriented polymer films are investigated by atomic force microscopy. A change in surface topography of the film is observed. Different polymer types and different draw ratios are used. The dependence of topography effects on the draw ratio is shown. A model of the writing effect is framed.