Abstract
An investigation of the mechanism of UV laser-induced surface structure formation on synthetic polymers is presented. The structuring effect is purely due to thermal behaviour of the outer most layers of the fibre during the influence of a laser pulse. The release of frozen-in tensions within fibres is coupled with high temperature gradients, thus leading to cooperative behaviour for the movement of polymer chains. Atomic force measurements and statistical methods for the very first structures support the interpretation given. Once a structure element is formed, its development on further irradiation is predetermined. A computer modelling of the stress release model is given. © 1997 SCI.
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