INFLUENCE OF As 2 S 3  STOICHIOMETRY ON THE OPTICAL TRANSMISSION OF GLASS IN THE SPECTRAL RANGE 5–8 µm

G. E. Snopatin; Снопатин Г. Е.; I. V. Skripachev; Скрипачев И. В.; V. G. Plotnichenko; Плотниченко В. Г.; M. F. Churbanov; Чурбанов М. Ф.

doi:10.31857/S268695352260060X

INFLUENCE OF As₂S₃ STOICHIOMETRY ON THE OPTICAL TRANSMISSION OF GLASS IN THE SPECTRAL RANGE 5–8 µm

Autores: Snopatin G.E.¹, Skripachev I.V.¹, Plotnichenko V.G.², Churbanov M.F.¹
Afiliações:
1. G.G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences
2. A.M. Prokhorov Institute of General Physics, Russian Academy of Sciences, Dianov’ Research Center for Fiber Optics
Edição: Volume 511, Nº 1 (2023)
Páginas: 37-41
Seção: CHEMISTRY
URL: https://bakhtiniada.ru/2686-9535/article/view/135982
DOI: https://doi.org/10.31857/S268695352260060X
EDN: https://elibrary.ru/EQDFJV
ID: 135982

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Resumo

Glassy chalcogenides A^VB^VI obtained by solidification of high-temperature melts inherit the polymolecular nature of the melt. The influence of this circumstance on the optical properties of glasses is important in connection with the use of optical fibers for fabrication and has not been adequately studied. Bulk samples of high-pure glasses As_40 – _xS_60 + _x (0 < x < 5) with the content of metal and silicon impurities less than 0.1‒0.2 ppm wt., carbon, oxygen, hydrogen compounds – no more than 0.5–1 ppm wt. and optical fibers from them were obtained. The IR spectra of bulk samples 12 cm long and optical fibers up to 15 m long were recorded in the spectral range 1000–2000 cm^–1. Absorption bands with maxima near 1950, 1805, 1460, and 1320 cm^–1, due to the content of superstoichiometric sulfur in glass, were found in the spectra of bulk samples and fibers, and the corresponding values of the extinction coefficients were determined. The results of the study allow us to consider the As₂S₃ stoichiometry as a factor that significantly affects the optical characteristics of glass.

Palavras-chave

chalcogenide glasses, glassy arsenic sulfide, low optical loss, mid‑IR spectral range

Bibliografia

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