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Azobenzene functionalised polymers are interesting and potentially useful materials for optical devices applications. The photoanisotropic azobenzene molecules upon irradiation with polarized light show photoinduced reorientation through the trans-cis-trans photoisomerisation cycles. A study concerning the surface structuration capacity of the polyimides described here was performed and the results obtained using Nd:YAG laser at 355 nm, at a incident fluence of 35mJ/cm2 are presented. The best results were obtained for 5 laser pulses, an increase of the pulse numbers leading to the diminution of the relief definition.