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Acoustooptic figure of merit for Sn2P2S6 crystals and the temperature dependences of acoustic wave velocities 

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Mys O., Martynyuk-Lototska I. and Vlokh R.

Abstract. We report on the studies for temperature dependences of both longitudinal and transverse acoustic wave velocities in Sn2P2S6 crystals. We show that the above temperature dependences, in particular those concerned with the slowest waves, should not impose notable temperature variation of their acoustooptic figure of merit.

Keywords: acoustooptic figure of merit, acoustic wave velocity, ferroelectric phase transition

PACS: 78.20.hb, 62.65.+k, 77.84.-s
UDC: 535.4, 534.22
Ukr. J. Phys. Opt. 12 166-170
doi: 10.3116/16091833/12/4/166/2011
Received:  25.09.2011

Анотація В роботі наведені результати дослідження температурних залежностей швидкостей поздовжніх і поперечних акустичних хвиль в кристалах Sn2P2S6. Показано, що температурна поведінка швидкостей акустичних хвиль, зокрема - найповільніших, не суттєво впливатиме на температурну поведінку коефіцієнта акустооптичної якості даних кристалів.
 
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