Malyshev, A Yu and Bityurin, N M (2005) Laser swelling model for polymers irradiated by nanosecond pulses. Quantum Electronics, 35 (9). pp. 825-830.
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Official URL: http://stacks.iop.org/1063-7818/35/825
Mechanisms of laser swelling of polymers are considered. A theoretical model for one of such mechanisms is constructed and investigated. This mechanism is based on the formation of a thermoelastic wave upon absorption of a laser pulse. Tensile stresses in this wave lead to elastic and plastic deformation of a polymer in the heated region and to the formation of convex structures (humps). The threshold energy density of a laser pulse required for the production of a residual hump under laser irradiation is obtained analytically. A formula for the height of this hump is also derived. The model explains the earlier experimental data from the literature on swelling of a PMMA film irradiated by UV pulses.
|Deposited By:||Prof. Alexey Ivanov|
|Deposited On:||06 Feb 2010 11:11|
|Last Modified:||06 Feb 2010 11:53|
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