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Registration Number

0209U008760, 0109U006379 , R & D reports

Title

The technology development for production of high-effective acoustooptical elements for visible and infrared spectral ranges

Head

Vlokh Rostyslav Orestovych,

Registration Date

16-12-2009

Organization

Institute of Physical Optics named after O.G. Vlokh of Ministry of Education and Science of Ukraine

Description

It was established that as compared to the gas-transport method of growing of Sn2P2S6 crystals the growth by the directed crystallization method appears more preferable from the practical point of view, as allows to get the crystals of considerable sizes with higher repeatability. The optimal conditions of growing of Sn2P2S6 single crystals by the method of directed crystallization of fusion of both stechiometric and with deviations from stechiometric mixture were obtained. The values of acoustic waves velocities were experimentally investigated and the values of coefficients of matrices of elastic stiffness and compliance as well as also values of piezooptical and photoelastic coefficients of Sn2P2S6 crystals were calculated. The obtained results revealed, that the large values of refractive indexes and piezooptical coefficients of Sn2P2S6 crystals (some of them are near 10-11 m2/n) presumes the very high values of coefficient of acoustooptical quality for these crystals. Thus, the obtained results allow to expect that the tested crystals will be perspective acoustooptical materials for control of laser radiation in a wide visible and infra-red spectral range.

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Дудок Тарас Григорович
Костирко Мирослав Євгенійович
Мартинюк-Лотоцька Ірина Юріївна
Мись Оксана Григорівна