Insight to UV-induced formation of laser damage on LiB3O5 optical surfaces during long-term sum-frequency generation

Autor(en): Moeller, S.
Andresen, A.
Merschjann, C.
Zimmermann, B.
Prinz, M.
Imlau, M. 
Stichwörter: CHEMISTRY; DEPOSITION; GROWTH; Optics; SIO2; SPECTRA
Erscheinungsdatum: 2007
Herausgeber: OPTICAL SOC AMER
Journal: OPTICS EXPRESS
Volumen: 15
Ausgabe: 12
Startseite: 7351
Seitenende: 7356
Zusammenfassung: 
Microscopic investigations of UV-induced formation of laser damage on LiB3O5 optical surfaces during long-term sum-frequency generation (SFG) uncovers a significant growth of a SiO2-amorphous layer spatially limited to the illuminated area. The layer gives rise to a catastrophic break-down of the LiB3O5-output surface upon long-term laser operation even at intensities far below the laser-induced damage threshold. The interaction of UV laser light, LiB3O5 surface and foreign atoms in the ambient atmosphere is discussed in the frame of a two-step process for surface-damage formation.
ISSN: 10944087
DOI: 10.1364/OE.15.007351

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