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Acoustooptic and acoustic properties of KLiB4O7 crystals
Mys O.G.

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

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The acoustic and acoustooptic (AO) properties of KLiB4O7 crystals are experimentally studied and analysed. It is shown that the above crystals can be used as a material for AO applications. The AO figure of merit calculated for the slowest acoustic wave is equal to M2=(332±120)×10-15s3/kg. Propagation of the acoustic energy flow in KLiB4O7 for the cases of transverse and longitudinal acoustic waves is considered. It is shown that the obliquity for the slowest transverse wave is relatively small and so it cannot affect essentially the efficiency of AO interaction.

Keywords: KLiB4O7 crystals, acoustooptic figure of merit, acoustooptic interaction, acoustic waves, phase velocity, acoustic energy flow

PACS: 43.35.Sx, 78.20.Hp
UDC: 535.4, 534.22
Ukr. J. Phys. Opt. 10 165-174 
doi: 10.3116/16091833/10/3/165/2009
Received: Received: 15.07.2009

Анотація. У даній роботі експериментально дослідженні і проаналізовані акустичні і акустооптичні (AO) властивості кристалів KLiB4O7. Показано, що ці кристали можуть використовуватись, як акустооптичні матеріали а розрахований коефіцієнт АО якості для найповільнішої акустичної хвилі становить M2=(332±120)×10-15c3/кг. Розглянуте поширення потоку акустичної енергії в кристалах KLiB4O7 для повздовжніх і поперечних акустичних хвиль і показано, що „знос” потоку енергії для найповільнішої акустичної хвилі є досить незначним і не може суттєво вплинути на ефективність АО взаємодії.
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