Stimulated Desorption as a Potential Damage Mechanism in Ultraviolet Laser Optical Components
It is well-known that substrates and thin-film coatings for ultraviolet optical components are damaged by intense laser radiation, and widely believed that radiation-enhanced or even plasma chemistry in the laser environment exacerbates the damage problem. Unlike laser damage at infrared wavelengths, which is largely thermal, the damage morphology in UV optical materials exhibits both thermal and non-thermal characteristics. However, the fundamental physics leading to optical damage remains largely unexplored even in a qualitative way , despite the significant negative impact of low damage thresholds on laser systems cost, reliability and engineering.
KeywordsNeutral Atom Optical Surface Optical Damage Intense Laser Radiation Atomic Emission Spectrum
Unable to display preview. Download preview PDF.
- 1.W. H. Lowdermilk and D. Milam: “Review of Ultraviolet Damage Threshold Measurements at Lawrence Livermore National Laboratory,” in Excimer Lasers (SPIE Vol. 476), ed. R. W. Waynant ( SPIE, Bellingham, WA, 1984 )Google Scholar
- 2.G. W. York, S. J. Czuchlewski, E. T. Salesky and L. A. Rososcha: “Energy and Gain Measurements on the Los Alamos Large-Aperture KrF Laser,” in Proc.Lasers ‘84 Conference, November 1984 (to be published)Google Scholar
- 6.N. H. Tolk et al.: Contribution to DIET-II Conference ProceedingsGoogle Scholar