V.Yo. Stadnyk, M.O. Romanyuk, V.Yu. Kurlyak, V.F.Vachulovych
The influence of uniaxial mechanical pressure applied
along the principal axes and the corresponding bisectors on the birefringent
properties of Rochelle salt (RS) crystals are studied. The temperature
(77-300 K) and spectral (300-700 nm) dependencies of the effective
and absolute
piezooptical constants
of the RS crystals are calculated. The intercept of dispersion curves of
is revealed in the region of the birefringence sign inversion. This testifies
that the anizotropy of the piezooptical constant tensor decreases there.
The temperature dependencies of absolute piezooptical constants do not
manifest notable anomalies in the region of phase transitions of the Rochelle
salt
Key words: uniaxial mechanical pressure, birefringence, combined and absolute piezooptical constants
doi 10.3116/16091833/1/1/19/2000
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