Optic properties of niobium-phosphate glasses containing lithium, sodium, and potassium oxides
- Authors: Ol’shin P.K.1, Povolotskii A.V.1, Man’shina A.A.1, Markov V.A.2, Sokolov I.A.2
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Affiliations:
- Institute of Chemistry
- Peter the Great St. Petersburg Polytechnic University
- Issue: Vol 43, No 4 (2017)
- Pages: 294-297
- Section: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/216033
- DOI: https://doi.org/10.1134/S1087659617040095
- ID: 216033
Cite item
Abstract
The dependence of the optic properties of niobium-phosphate glasses containing alkali metal oxides on their composition and structural features is investigated. Along with the increase of the niobium oxide content, a shift of the optic absorption boundary to the long-wavelength range and a substantial increase of the refraction index (from 1.50 to 1.73) are observed. The increase of the alkali metal mass results in the decrease of the refraction index and a shift to the short-wavelength range. The correlation between the length of polyphosphate groups and the type of alkali oxide is registered: the chain length increases from lithium to potassium.
About the authors
P. K. Ol’shin
Institute of Chemistry
Email: markov.va@spbstu.ru
Russian Federation, St. Petersburg, 198904
A. V. Povolotskii
Institute of Chemistry
Email: markov.va@spbstu.ru
Russian Federation, St. Petersburg, 198904
A. A. Man’shina
Institute of Chemistry
Email: markov.va@spbstu.ru
Russian Federation, St. Petersburg, 198904
V. A. Markov
Peter the Great St. Petersburg Polytechnic University
Author for correspondence.
Email: markov.va@spbstu.ru
Russian Federation, St. Petersburg, 195251
I. A. Sokolov
Peter the Great St. Petersburg Polytechnic University
Email: markov.va@spbstu.ru
Russian Federation, St. Petersburg, 195251