Photochemical Preparation of Sub-Wavelength Heterogeneous Laser-Induced Periodic Surface Structures

摘要

Intense linearly polarized laser light may induce periodic patterns on the surface of various metals, semiconductors and dielectrics. The periodicity of the patterns depends both on the laser wavelength, and the angle of the incidence to the surface.A vertically incident laser beam leads to a periodic line pattern with a spacing in the range of the wavelength of the light employed.T