Our inventory carries standard substrates with laser grade polishing on both sides of the surface. They are ideal for transmission applications such as partial reflecting mirrors, window, beamsplitters… etc. Laser components depend upon highly polished substrates as well as reliable coating performance. One of the reasons for scattering, damage by laser light occurs is when the substrate is inferior or is inefficiently polished. We recommend UVFS for UV and very high power applications whereas BK7 substrates can be an economical solution for laser components applied in various laboratory applications or miscellaneous devices to instruments.
If you are unable to find suitable specifications for your need, you can contact us for a custom solution and one of our representatives will respond within a day or 24 hours.