The polymer films are widely used as the reflecting materials in any types of the optical systems. It demands the detail studies ofthe basics and threshold parameters of laser ablation destruction such a materials in the power laser radiation with pulse energy density in range from 1 up to 100 i/cm2. The probability of the target laser ablation destruction versus the incident laser radiation energy density dependencies for any polymers the high pressure polyethylene, epoxy compound, polytetraphluoroethylene and rubber for comparing -have been a subject of the experimental studies. It takes into account all of the energy distribution channels -reflectance, scattering and absorbance for laser ablation ofthese samples and . These results show that about I 1 % of absorbed laser pulse energy was transferred to the target as the shock wave spreading in it when the target thickness is greater than the distance which this shock wave spreads in the time oflaser pulse action.
The laser ablation threshold energy density of the glass nanocomposites of the different composition for the YAG Nd laser pulse radiation experimental measurements have been fulfilled. The dependences of the laser ablation threshold parameters versus the optical and physical properties of these nanocomposites have been studied.
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