Abstract
We report designs and results of the dielectric laser reflectors to enhance the damage resistance. Tested samples were titania/silica multilayers and damage testing was done using 1.5 ns pulses at 1.06μm. Damage threshold has been increased by using non-quarter-wave (NQW) design reducing the electric field strength at the titania/silica interface. Another improvement was done by addition of a half wave silica overcoat. The results were applied to the turning mirrors in the GXII target irradiation.
