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Proceedings Paper

Peculiarities of the optical anisotropy in lead germanate-type crystals
Author(s): Yaroslav I. Shopa; Modest O. Kravchuk; Orest G. Vlokh
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Paper Abstract

Using the high-accuracy principles, spontaneous and induced parametric phenomena are studied in lead germanate-silicate Pb5(Ge1-xSix)3O11 (x equals 0.4) crystals near the ferroelectric phase transition. The symmetry of the phasers is appropriate for simultaneous measuring all the effects. It is essential that at re- polarizing crystals under the electric field, the optical activity sign changes, while the linear birefringence remains unaltered. This enables to find easily the parameters related to the systematic polarimetric errors. Although the crystals mentioned may be regarded as typical ferroelectrics with the second order phase transition, the temperature and the field dependencies of the effects measured depends notably on the sample conductivity, the domain structure and the light scattering at structural defects.

Paper Details

Date Published: 1 April 1997
PDF: 6 pages
Proc. SPIE 3094, Polarimetry and Ellipsometry, (1 April 1997); doi: 10.1117/12.271813
Show Author Affiliations
Yaroslav I. Shopa, Lviv State Univ. (Ukraine)
Modest O. Kravchuk, Lviv State Univ. (Ukraine)
Orest G. Vlokh, Institute of Physical Optics (Ukraine)

Published in SPIE Proceedings Vol. 3094:
Polarimetry and Ellipsometry
Maksymilian Pluta; Tomasz R. Wolinski, Editor(s)

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