Growth of Laser Damage in SiO2 under Multiple Wavelength Irradiation

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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 ... continued below

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Norton, M A; Donohue, E E; Feit, M D; Hackel, R P; Hollingsworth, W G; Rubenchik, A M et al. October 28, 2005.

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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.

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PDF-file: 12 pages; size: 0.6 Mbytes

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  • Presented at: Boulder Damage Symposium XXXVII, Boulder, CO, United States, Sep 19 - Sep 21, 2005

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  • Report No.: UCRL-PROC-216742
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 877930
  • Archival Resource Key: ark:/67531/metadc876261

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  • October 28, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 28, 2016, 7:30 p.m.

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Norton, M A; Donohue, E E; Feit, M D; Hackel, R P; Hollingsworth, W G; Rubenchik, A M et al. Growth of Laser Damage in SiO2 under Multiple Wavelength Irradiation, article, October 28, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc876261/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.