Behaviour of Isotropic Point in LiKSO4 Crystals
V.J. Stadnyk, M.O. Romanyuk and V.F. Vachulovich
Physics Department, Lviv I. Franko University, Lomonosova 8a, Lviv, 290005, Ukraine
Received: January 7, 1992; revised version: January 27, 1993
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The temperature-spectral dependencies of refractive indices and birefringence in wide temperature (77-1000 K) and spectral (250-850 nm) regions in LiKSO4 crystals were measured. The isotropic point of LiKSO4 crystals was investigated. It was shown that annealing and X-ray irradiation display insignificantly the isotropic point to a visible region of spectrum.
DOI: 10.12693/APhysPolA.83.469
PACS numbers: 77.80.-e