Preparation of Films by Irradiation of a Copper Sulfate Aqueous Solution by Infrared Laser Radiation

CZU 535:621.373.8:539

DOI https://doi.org/10.52577/eom.2022.58.3.13

The methodology, technique, and results of studies of the formation of films on the glass surface during laser irradiation of water solutions of copper sulfate with radiation are presented. The nanosecond radiation of an yttrium-aluminum garnet laser with a generation wavelength λ = 1.06 μm was used. Solutions with different concentrations of copper sulfate were applied. The structure of the films obtained in this case was compared with the structure of the films obtained as a result of drying solutions without exposure to laser radiation. The resulting films have both ordered and disordered structures. The characteristic dimensions of the structural elements of the films are 0.5–10 μm. The transmission of films in the visible spectral region (400–800 nm) was studied. In general, the resulting films are transparent in this area. Their transmission practically does not depend on the wavelength, but is different for different concentrations of the used solutions of copper sulfate.

Keywords: formation of structured films, yttrium-aluminum garnet laser radiation, copper sulfate aqueous solution, microphotographs of films, transmission spectra.