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Proceedings Article

Growth of laser damage in SiO2 under multiple wavelength irradiation

[+] Author Affiliations
Mary A. Norton, Eugene E. Donohue, Michael D. Feit, Richard P. Hackel, William G. Hollingsworth, Alexander M. Rubenchik, Mary L. Spaeth

Lawrence Livermore National Lab.

Proc. SPIE 5991, Laser-Induced Damage in Optical Materials: 2005, 599108 (February 07, 2006); doi:10.1117/12.638833
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From Conference Volume 5991

  • Laser-Induced Damage in Optical Materials: 2005
  • Gregory J. Exarhos; Arthur H. Guenther; Keith L. Lewis; Detlev Ristau; M.J. Soileau; Christopher J. Stolz
  • Boulder, CO | September 19, 2005

abstract

In laser systems using frequency conversion, multiple wavelengths will be present on optical components. We have investigated the growth of laser initiated damage in fused silica in the presence of multiple wavelengths. In particular, we measured growth at 351 nm in the presence of 1053 nm near the threshold of growth for 351 nm alone. The data shows that the sum fluence determines the onset of growth as well as the growth rate. The measured growth coefficient is consistent with all the energy being delivered at 351 nm. Additionally, we measured growth at 527 nm in the presence of 1053 nm near the threshold of growth at 527 nm alone. In this case, the sum fluence also determines the growth coefficient but the rate is consistent with all the energy being delivered at 1053 nm. We present the measurements and discuss possible reasons for the behavior.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Mary A. Norton ; Eugene E. Donohue ; Michael D. Feit ; Richard P. Hackel ; William G. Hollingsworth, et al.
"Growth of laser damage in SiO2 under multiple wavelength irradiation", Proc. SPIE 5991, Laser-Induced Damage in Optical Materials: 2005, 599108 (February 07, 2006); doi:10.1117/12.638833; http://dx.doi.org/10.1117/12.638833


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