Custom beamsplitters from Optical Surfaces available

High-precision, custom-designed beamsplitters in a variety of shapes are manufactured to a surface accuracy of λ/20 p-v at 633 nm, a surface quality of 10/5, and microroughness of <1.2 nm rms. They come mounted or unmounted, and can have a range of coatings designed to operate at a required angle of incidence.
Optical Surfaces
Kenley, Surrey, England
www.optisurf.com