Multilayer coatings for high-power laser mirrors and lenses have been optimized by a particular constrained gradient method to reach together with a reduction of damage threshold (i.e., suppression of the peak electric field), good values of optical parameters (reflectance or transmittance). The problem has been solved for normal and oblique incident radiation of λ = 10.6 µm. Reflectance values of more than 0.99 have been achieved with only two layers deposited on a metal mirror.
© 1984 Optical Society of America
F. Demichelis, E. Mezzetti-Minetti, L. Tallone, and E. Tresso, "Optimization of optical parameters and electric field distribution in multilayers," Appl. Opt. 23, 165-171 (1984)