DEVELOPMENT OF NEWLY DESIGNED POLARIZER FOR HIGH-POWER LASER

A multilayer thin-film polarizer with high damage resistance has been developed by adopting a new coating design that minimizes the induced electric field intensity within the multilayer coating. The damage thr eshold was greater-than-or-equal-to 11 J/cm2 for the p-polarized incid ent beam from the coating side and greater-than-or-equal-to 17 J/cm2 f or the s-polarized backward-reflected beam from the substrate side for a 1.053 mum laser with a pulse width of 1 ns.