Synthesis of surface structures during laser-stimulated evaporation of a copper sulfate solution in distilled water

Abstract

The methodology, technique, and results of studies of the formation of films on the glass sur-face during the irradiation of water solutions of copper sulfate with the laser radiation arepresented. We used the nanosecond radiation of an yttrium-aluminum garnet laser with thegeneration wavelength𝜆=1.06𝜇m. The studies used solutions with different concentra-tions of copper sulfate. The structure of the films obtained in this case is compared with thestructure of the films obtained as a result of drying the solutions without exposure to a laserradiation. The resulting films have both ordered and disordered structures. The characteristicdimensions of the structural elements of the films are 0.5–2𝜇m. The transmission of films inthe 300–1200 nm spectral region is studied. In general, the resulting films are transparent inthis area. Their transmission practically does not depend on the wavelength, but is differentfor different concentrations of the solution of copper sulfate.