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Polarimetric studies of l ‐arginine‐doped potassium dihydrogen phosphate single crystals
Author(s) -
Shopa Mykola,
Shopa Yaroslav,
Shribak Michael,
Kostenyukova Elena,
Pritula Igor,
Bezkrovnaya Olga
Publication year - 2020
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s1600576720010870
Subject(s) - polarimeter , polarimetry , optical rotatory dispersion , potassium , wavelength , optical rotation , doping , analytical chemistry (journal) , materials science , chemistry , ammonium dihydrogen phosphate , characterization (materials science) , optics , crystallography , physics , optoelectronics , circular dichroism , chromatography , nanotechnology , fertilizer , organic chemistry , scattering , metallurgy
Conoscopic interference patterns, channelled spectra and polarimetric techniques have been used for the characterization of pure and doped (with l ‐arginine amino acid) potassium dihydrogen phosphate (KDP) single crystals. Experimental polarimetric data have been obtained for the frequently used wavelength of 633 nm and for two close wavelengths of 532 and 543 nm in a high‐accuracy dual‐wavelength polarimeter. The measurement of eigenwave ellipticity in the [100] and [010] directions and between 295 and 340 K shows small differences in the absolute values of the specific optical rotations of KDP crystals doped with l ‐arginine in the range of 0.7–3.8 wt%. It is found that the gyration tensor component g 11 , specific optical rotation and eigenwave ellipticity show different dispersion in the visible spectral region.