Growth of laser damage in fused silica: diameter to depth ratio

Mary A. Norton; John J. Adams; C. Wren Carr; Eugene E. Donohue; Michael D. Feit; Richard P. Hackel; William G. Hollingsworth; Jeffrey A. Jarboe; Manyalibo J. Matthews; Alexander M. Rubenchik; Mary L. Spaeth

doi:10.1117/12.748441

18 December 2007 Growth of laser damage in fused silica: diameter to depth ratio

Mary A. Norton, John J. Adams, C. Wren Carr, Eugene E. Donohue, Michael D. Feit, Richard P. Hackel, William G. Hollingsworth, Jeffrey A. Jarboe, Manyalibo J. Matthews, Alexander M. Rubenchik, Mary L. Spaeth

Author Affiliations +

Proceedings Volume 6720, Laser-Induced Damage in Optical Materials: 2007; 67200H (2007) https://doi.org/10.1117/12.748441
Event: Boulder Damage Symposium XXXIX: Annual Symposium on Optical Materials for High Power Lasers, 2007, Boulder, Colorado, United States

Abstract

Growth of laser initiated damage plays a major role in determining optics lifetime in high power laser systems. Previous measurements have established that the lateral diameter grows exponentially. Knowledge of the growth of the site in the propagation direction is also important, especially so when considering techniques designed to mitigate damage growth, where it is required to reach all the subsurface damage. In this work, we present data on both the diameter and the depth of a growing exit surface damage sites in fused silica. Measured growth rates with both 351 nm illumination and with combined 351 nm and 1054 nm illumination are discussed.

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Mary A. Norton, John J. Adams, C. Wren Carr, Eugene E. Donohue, Michael D. Feit, Richard P. Hackel, William G. Hollingsworth, Jeffrey A. Jarboe, Manyalibo J. Matthews, Alexander M. Rubenchik, and Mary L. Spaeth "Growth of laser damage in fused silica: diameter to depth ratio", Proc. SPIE 6720, Laser-Induced Damage in Optical Materials: 2007, 67200H (18 December 2007); https://doi.org/10.1117/12.748441

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