UF.25 ultrafast mirror coating is designed to provide maximum reflectivity and bandwidth with minimum effect on pulse dispersion. Careful thin film design and an advanced coating process result in a broadband mirror with exceptional performance characteristics. This coating is optimized at 45° AOI for steering ultrafast pulsed lasers and provides simultaneous reflectance for both S- and P-polarized light, over 99% reflectance from 730-870nm for P-polarization and 700-930nm for S-polarization.

Group delay dispersion (GDD) and the cubic term of the phase expansion are shown below for reference. True mirror performance can be affected by manufacturing tolerances and repeatability. Newport minimizes these effects with the use of state-of-the-art thin film production equipment and computer controlled processes. These mirrors have been successfully field tested at several university and industrial laboratories engaged in ultrafast studies and have been found to have high performance very closely matching these calculated curves.