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Study of Laser-Induced Damage of Borate Crystals
Vlokh R., Dyachok Ya., Krupych O., Burak Ya., Martunyuk-Lototska
I., Andrushchak A., Adamiv V.
Institute of Physical Optics, 23 Dragomanov Str., 79005,
Lviv, Ukraine
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The optical damage threshold of a-BaB2O4,
b-BaB2O4, LiB4O7 and CsLiB6O10 was experimentally
studied. It was observed that the damage dimensions in studied crystals
linearly depend on the laser irradiation intensity. The resistance against
laser irradiation is highest in LTB crystals and decreases through BBO
crystals to ABO crystals and is lowest in CLBO crystals. The appearance
of optical anisotropy under powerful light illumination was observed at
the power density of two orders smaller than damage threshold. At the powerful
beam propagation along the optical axis of studied crystals the observed
shape of damages possess the view of stars with the rays parallel to the
symmetry elements of the crystals.
Key words: optical damage, borate crystals.
PACS: 42.70.Mp; 61.80.Ba
doi 10.3116/16091833/4/2/101/2003 |
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