Insight to UV-induced formation of laser damage on LiB_3O_5 optical surfaces during long-term sum-frequency generation | Zendy

Stefan Möller | Zendy; Ä. Andresen | Zendy; C. Merschjann | Zendy; Bernd Alois Zimmermann | Zendy; M. Prinz | Zendy; M. Imlau | Zendy

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Insight to UV-induced formation of laser damage on LiB_3O_5 optical surfaces during long-term sum-frequency generation

Author(s) -

Stefan Möller,

Ä. Andresen,

C. Merschjann,

Bernd Alois Zimmermann,

M. Prinz,

M. Imlau

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.007351

Subject(s) - laser , optics , materials science , sum frequency generation , layer (electronics) , amorphous solid , surface layer , optoelectronics , chemistry , nonlinear optics , physics , nanotechnology , organic chemistry

Microscopic investigations of UV-induced formation of laser damage on LiB(3)O(5) optical surfaces during long-term sum-frequency generation (SFG) uncovers a significant growth of a SiO(2)-amorphous layer spatially limited to the illuminated area. The layer gives rise to a catastrophic break-down of the LiB(3)O(5)-output surface upon long-term laser operation even at intensities far below the laser-induced damage threshold. The interaction of UV laser light, LiB(3)O(5) surface and foreign atoms in the ambient atmosphere is discussed in the frame of a two-step process for surface-damage formation.

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