The effect of multiple wavelengths on Laser-induced damage in DKDP crystals

Journal Article · Mon Jul 11 04:00:00 EDT 2005 · Optics Letters

OSTI ID:886927

Carr, C W; Auerbach, J M

Laser-induced damage is a key factor that constrains how optical materials are used in high-power laser systems. In this work the size and density of bulk laser-induced damage sites formed during frequency tripling in a DKDP crystal are studied. The characteristics of the damage sites formed during tripling, where 1053-nm, 526-nm, and 351-nm light is simultaneously present, are compared to damage sites formed by 351-nm light alone. The fluence of each wavelength is calculated as a function of depth with a full 4D(x,y,z,t) frequency conversion code and compared to measured damage density and size distributions. The density of damage is found be predominantly governed by 351-nm light with some lesser, though non-negligible contribution from 526-nm light. The morphology of the damage sites, however, is seen to be relatively insensitive to wavelength and depend only on total fluence of all wavelengths present.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 886927
• Report Number(s): UCRL-JRNL-214793
• Journal Information: Optics Letters, Journal Name: Optics Letters Journal Issue: 5 Vol. 31; ISSN 0146-9592; ISSN OPLEDP
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASERS
MORPHOLOGY
WAVELENGTHS