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Proceedings Paper

Influence of external factors on refractive properties of LiKSO4 and (NH4)2BeF4
Author(s): Vladimir M. Gaba; V. J. Stadnyk; M. O. Romaniuk
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Paper Abstract

The LiKSO4 (LPS) and (NH4)2BeF4 (AFB) crystals belong to ferroelectrics with incommensurate phase and birefringence inversion. Birefringence inversion point (lambda) 0 in LPS crystals was observed in spectral ranges 240...360 nm within 180...430 K. Two regions of (Delta) ni sign change of AFB crystals were observed (76 K and 312 K) for spectral range 400...1000 nm. The purpose of the paper is to investigate the influence of ancienting, annealing and x-ray irradiation on temperature and spectral dependences of birefringence (isotropic point) of LPS and AFB crystals.

Paper Details

Date Published: 29 April 1996
PDF: 6 pages
Proc. SPIE 2795, Nonlinear Optics of Liquid and Photorefractive Crystals, (29 April 1996); doi: 10.1117/12.239217
Show Author Affiliations
Vladimir M. Gaba, State Univ. Lviv Polytechnic (Ukraine)
V. J. Stadnyk, I.Franko Lviv State Univ. (Ukraine)
M. O. Romaniuk, I.Franko Lviv State Univ. (Ukraine)


Published in SPIE Proceedings Vol. 2795:
Nonlinear Optics of Liquid and Photorefractive Crystals
Gertruda V. Klimusheva; Andrey G. Iljin, Editor(s)

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