Determination of the Optical Parameters of Uniaxial Optically Active Crystals Taking into Account the Imperfection of Spectrophotometric Complex Elements

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 La 3 Ta 0.25 Ga 5.25 Si 0.5 O 14 crystal, belonging to the langasite family. A comparison...

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Bibliographic Details
Published in:Crystallography reports 2018-11, Vol.63 (6), p.964-968
Main Authors: Golovina, T. G., Konstantinova, A. F., Nabatov, B. V., Evdishchenko, E. A.
Format: Article
Language:English
Subjects:
Crystal defects
Crystal structure
Crystallography and Scattering Methods
Optical activity
Optical components
Parameters
Physical Properties of Crystals
Physics
Physics and Astronomy
Spectrophotometry
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Summary: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 La 3 Ta 0.25 Ga 5.25 Si 0.5 O 14 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.
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774518060135