Mys O. Combined piezoelectrooptical effects of the ferroelectric crystals.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0406U004074

Thesis Registration Form

0406U004074.pdf

Applicant for

Specialization

  • 01.04.05 - Оптика, лазерна фізика

17-10-2006

Specialized Academic Board

Д35.071.01

Essay

The dissertation is devoted to study of the combined piezoelectrooptical effect in ferroelectric crystals, namely: NaKC4H4O6 4H2O, Pb5Ge3O11, LiNbO3, LiTaO3. For LiNbO3 crystals the electrooptical coefficient r22 increases approximately two times under the action of compressive mechanical stress sigma=2* 10^6N/m^2, while the half-wave voltage approximately two times ecreases. It was found out that the value of the piezoelectrooptic coefficients increases anomalously at the vicinity of the phase transition. It was shown that the temperature changes of the piezoelectrooptic coefficients follow the temperature dependence of the dielectric permittivity and is described by the Curie-Weiss law.

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Files

avtoreferat.doc

disertatsija.doc

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