Lead-germanate glasses are a promising material for creating optical elements. However, producing such glasses with a high degree of homogeneity is associated with several technological challenges. During synthesis, phase separation can occur, in which the glass separates into several amorphous phases with different chemical compositions, negatively affecting its optical properties (scattering, absorption). Determining the exact composition is further complicated by the high lead content, which can distort analytical results. Uneven evaporation of components from the glass surface and insufficient mixing of the melting during synthesis can also lead to local variations in composition. To address these issues, a method for chemical composition mapping based on laser-induced breakdown spectroscopy (LIBS) is proposed, allowing for the visualization of the spatial distribution of elements on the sample surface. This paper presents the results of a LIBS study of lead-germanate glass samples of various compositions and demonstrates the differences in the results obtained depending on the spectral data processing method.
Aleksandra A. Savchuk – postgraduate student, Research and Educational Center for Photonics and Optoinformatics, ITMO University, St. Petersburg, Russia
Mikhail D. Basmanov – postgraduate student, Research and Educational Center for Photonics and Optoinformatics, ITMO University, St. Petersburg, Russia
Vladimir A. Aseev – PhD, Associate Professor, Research Center for Optical Materials Science, ITMO University, St. Petersburg, Russia
Nikolay V. Nikonorov – Doctor of Physics and Mathematics, Leading Professor, Research Center for Optical Materials Science, ITMO University, St. Petersburg, Russia
Izzatillo Nuritdinov – Doctor of Physics and Mathematics, Leading Professor, Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan, Ulugbek village, Tashkent, Republic of Uzbekistan
A’zamkul A. Eshbekov – Doctor of Physics and Mathematics, Associate Professor, Samarkand State University named after Sharof Rashidov, Samarkand, Republic of Uzbekistan
Soliddin N. Srajev – Candidate of Physical and Mathematics, Associate Professor, Samarkand State University named after Sharof Rashidov, Samarkand, Republic of Uzbekistan
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