The temperature coefficient of the refractive index of glassy alloys in the As–S system along the As x S100–x (0 < x < 40) branch is determined in the 1–5 μm spectral interval for temperatures of 77–400 K. It is found that these glasses have negative, zero, and positive values of dn/dT, depending on the composition and wavelength. A single-oscillator model is used to analyze the spectral and temperature dependences of this coefficient.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 84, No. 1, pp. 158–161, January–February, 2017.
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Shpak, I.I., Rosola, I.I. & Shpak, О.I. Temperature Dependence of the Refractive Index of Glassy Alloys of the As x S100–x System. J Appl Spectrosc 84, 140–143 (2017). https://doi.org/10.1007/s10812-017-0441-3
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DOI: https://doi.org/10.1007/s10812-017-0441-3