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Article Dans Une Revue Optics Express Année : 2010

Multiple pulse nanosecond laser induced damage study in LiB3O5 crystals

Frank R. Wagner
Anne Hildenbrand
  • Fonction : Auteur
  • PersonId : 846645
Jean-Yves Natoli
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  • PersonId : 832180
Mireille Commandre
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  • PersonId : 832173

Résumé

Multiple pulse nanosecond laser induced damage in the bulk of LiB3O5 (LBO) crystals was investigated at 1064 nm, 532 nm and 355 nm. Scanning electron microscopy of cleaved damage sites confirmed the presence of different zones that have already been reported in the case of KH2PO4 (KDP). Multi pulse measurements reveal a strong decrease of the damage threshold with increasing pulse number at 1064 nm (fatigue effect). A weaker fatigue effect was observed at 532 nm and no fatigue effect was found at 355 nm. This observation is best explained by an inherently statistical light matter interaction generating laser induced damage. Finally, a polarization dependent damage threshold anisotropy was evidenced at all three wavelengths, being strongest at 1064 nm. The results indicate the importance of Li+ vacancy stabilized color centers for the damage mechanism

Dates et versions

hal-00546013 , version 1 (13-12-2010)

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Citer

Frank R. Wagner, Anne Hildenbrand, Jean-Yves Natoli, Mireille Commandre. Multiple pulse nanosecond laser induced damage study in LiB3O5 crystals. Optics Express, 2010, 18 (26), pp.26791-26798. ⟨10.1364/OE.18.026791⟩. ⟨hal-00546013⟩
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