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Ferroelastic crystals as effective acoustooptic materials
Vlokh R., Martynyuk-Lototska I.

Institute of Physical Optics, 23 Dragomanov St., 79005 Lviv, Ukraine

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In this paper we analyse acoustooptic properties of ferroelastic crystals. It is shown that proper ferroelastics are the most attractive materials for utilisation in acoustooptic devices, due to low velocities of acoustic waves caused by anomalous behaviour of elastic properties in the vicinity of phase transition. A number of new ferroelastic compounds promising for acoustooptic applications are described.

Keywords:  ferroelastics, acoustooptics.

PACS:  62.65.+k, 62.20.Dc; 78.20. UDC: 534.4
Ukr. J. Phys. Opt. 10 89-99 
doi: 10.3116/16091833/10/2/89/2009

Received: 23.03.2009

Анотація. В даній статті представлено аналіз акустооптичних властивостей сегнетоеластичних кристалів. Показано, що власні сегнетоеластики є найперспективнішими матеріалами для використання в акустооптичних пристроях завдяки низьким швидкостям акустичних хвиль, спричиненим аномальною поведінкою пружних властивостей в околі фазового переходу. В роботі описані нові сегнетоеластичні матеріали, перспективні для акустооптичного використання.

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