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2. Origin of laser damage
Laser damage results from the coupling and transfer of laser energy into the material. Schematically, two main types of mechanism can be distinguished:
electromagnetic effects, when the electric field is strong enough to ionize the material and induce electron avalanche effects;
thermal effects, due to the absorption of laser energy by the material or by defects in the material.
2.1 Electromagnetic effects
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Origin of laser damage
Laser flux resistance metrology
Bibliography
Standards and norms
- Determination of laser induced threshold on optical surfaces – part 1: 1-on-1. - ISO 11254-1 - 2000
- Determination of laser induced threshold on optical surfaces – part 2: S-on-1. - ISO 11254-2 - 2000
Patents
C. R. Wolfe, M. R. Kozlowski, J. H. Campbell, M. Staggs and F. Rainer, "Permanent laser conditioning of thin film optical materials", U.S. Patent, no. 5472748, 1990.
P. Bouchut, J.G. Coutard, A. During, "Method and device for preventive treatment of an optical surface exposed to laser flux", Patent no. FR2896794, 2007.
P. Cormont, L. Gallais and J.-L. Rullier, "Process for the...
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