Type I, Plane and Concave Gratings

For the production of plano and concave Type I holographic gratings, the two recording beams are collimated and oriented symmetrically with respect to the grating normal. Gratings produced in this manner have grooves which are parallel with a constant pitch.

We produce Type I grating masters for many applications, including high-energy ultrafast lasers, spaceflight and astronomy, and vacuum ultraviolet systems, and we produce Type I replicas for general spectroscopic applications. Large-aperture holographic gratings are routinely produced in our laboratories, up to 500-mm in dimension.