Abstract
The influence of the imperfection of optical elements of a spectrophotometric system on the polarization transmission spectra of a uniaxial optically active absorbing plate has been analyzed by the example of a La3Ta0.25Ga5.25Si0.5O14 crystal, belonging to the langasite family. A comparison of the calculated and experimental transmission spectra for two samples with different thicknesses and optical-axis orientations shows that the optical-activity parameters of a crystal and the angle of deviation of the optical axis from the normal (when this angle is small) can be estimated.
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ACKNOWLEDGMENTS
We are grateful to Yu.V. Pisarevskii for supplying samples.
This study was supported by the Federal Agency for Scientific Organizations (contract no. 007-ГЗ/Ч3363/26). This study was performed using equipment of the Shared Research Center “Structural Diagnostics of Materials” of the Federal Scientific Research Centre “Crystallography and Photonics” of the Russian Academy of Sciences.
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Translated by A. Sin’kov
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Golovina, T.G., Konstantinova, A.F., Nabatov, B.V. et al. Determination of the Optical Parameters of Uniaxial Optically Active Crystals Taking into Account the Imperfection of Spectrophotometric Complex Elements. Crystallogr. Rep. 63, 964–968 (2018). https://doi.org/10.1134/S1063774518060135
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DOI: https://doi.org/10.1134/S1063774518060135