Measuring spectral transmission and refractive index of AgCl1-xBrx (0 ≤ x ≤ 1) and Ag1-xTlxBr1-xIx (0 ≤ x ≤ 0.05) at the wavelength of 10.6 μm / Korsakov A.S., Vrublevsky D.S., Zhukova L.V. // Optical Materials. - 2015. - V. 50, l. . - P. 204-207.

ISSN:
09253467
Type:
Article
Abstract:
We measured the complex refractive index at the wavelength of 10.6 μm with the help of Fourier transform infrared spectroscopy for polycrystalline plates of the following compositions AgCl1-xBrx (0 ≤ x ≤ 1) and Ag1-xTlxBr1-xIx, where x varied from 0 to 0.05. In order to do it we chose a segment of the spectrum, which was recorded with a high resolution (0.5 cm-1) using the HgCdTe detector and which had a set of 10 identical peaks. It is shown that the real part of the refractive index rises along with increasing the substituting component fraction in the solid solution from 1.99 to 2.17 for AgCl1-xBrx and from 2.17 to 2.24 within the range of TlI mole fraction up to 0.05 for Ag1-xTlxBr1-xIx. We considered errors introduced by the spectrometer resolution and the accuracy rating of the micrometer, which was used to measure sample thickness. It is seen in the spectra, recorded for the second system with a lower resolution and using a deuterated and l-alanine doped triglycine sulfate detector, that increasing the thallium monoiodide fraction results in widening the transmission range towards bigger wavelengths. We also plan to use the obtained refractive index values for simulating mid-infrared optical fibers, the polycrystalline structure of which is close to the structure of the plates under investigation. © 2015 Elsevier B.V. All rights reserved.
Author keywords:
Fourier-transform infrared spectroscopy (FTIR); Mid-infrared material; Refractive index; Silver and thallium halide solid solution; Spectral transmission
Index keywords:
Amino acids; Fourier transform infrared spectroscopy; Infrared devices; Optical fibers; Plates (structural components); Silver; Silver halides; Solid solutions; Spectrometers; Thallium; Thickness meas
DOI:
10.1016/j.optmat.2015.10.025
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Affiliations Department of Physical Chemistry and Chemistry of Colloids, Institute of Chemistry and Technology, Ural Federal University, 19 Mira Str., Yekaterinburg, Russian Federation
Author Keywords Fourier-transform infrared spectroscopy (FTIR); Mid-infrared material; Refractive index; Silver and thallium halide solid solution; Spectral transmission
Funding Details 1761.2013.3, Ministry of Education and Science of the Russian Federation; 5440.2015.3, Ministry of Education and Science of the Russian Federation
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Correspondence Address Zhukova, L.V.; Department of Physical Chemistry and Chemistry of Colloids, Institute of Chemistry and Technology, Ural Federal University, 19 Mira Str., Russian Federation; email: l.v.zhukova@urfu.ru
Publisher Elsevier
CODEN OMATE
Language of Original Document English
Abbreviated Source Title Opt Mater
Source Scopus