| 摘要 |
<p>The method for marking or labeling a workpiece (3) with high-energy radiation such as a laser beam (1), where the workpiece is transparent for the wavelength of the radiation, comprises disposing a polymer matrix (7) in the vicinity of the workpiece, so that the radiation passes through the workpiece before it reaches to the polymer matrix, and disposing a liquid film (15) between the polymer matrix and the workpiece, where the liquid film contacts with the polymer matrix and the workpiece. A material ablation is evoked on the polymer matrix by the radiation. The method for marking or labeling a workpiece (3) with high-energy radiation such as a laser beam (1), where the workpiece is transparent for the wavelength of the radiation, comprises disposing a polymer matrix (7) in the vicinity of the workpiece, so that the radiation passes through the workpiece before it reaches to the polymer matrix, and disposing a liquid film (15) between the polymer matrix and the workpiece, where the liquid film contacts with the polymer matrix and the workpiece. A material ablation is evoked on the polymer matrix by the radiation and the liquid film includes removed constituents of the polymer matrix and/or products developed from the polymer matrix. A liquid such as sol, gel or viscoelastic substance is selected for the liquid film, exhibits no absorption in the wavelength region of 600-1500 nm, has a layer thickness of 250 nm to 10 mm and has an absorption grade of less than 10%, where the radiation is used in the wavelength region of 600-1500 nm. Ions dissolve in the liquid film and are provided as educts for a desired reaction to a product, which deposits on the workpiece under the effect of the laser beam. The liquid film is locally changed its aggregate condition under the effect of the radiation in a gaseous manner.</p> |
