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5. Optical components for high laser flux
5.1 Solid materials
Transparent materials used for high-power applications must have the lowest possible absorption at the wavelength of interest, and very few impurities. There is a wealth of data in the literature, but as we have seen, it can be difficult to compare results obtained by different laboratories, and manufacturing processes have a major impact on flux resistance. We will therefore not give absolute threshold values, but we will mention materials known to be resistant to laser flux.
Silica (SiO 2 ) of the synthetic type (UV grade fused silica) is a material of choice as it exhibits very good flux performance from DUV (> 1 J/cm 2 ,...
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Mechanical and dimensional measurements
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Optical components for high laser flux
Conclusion
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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