Blazed holographic gratings ensure less stray light without any reduction in diffraction efficiency, compared to conventional mechanically ruled gratings.
The aluminumcoated gratings are for use in spectrometers, spectrophotometers, and monochromators. Ion-beam etching creates the sawtooth design common to ruled gratings and eliminates the need for diamond-tipped tooling.
Edmund Optics, 101 E. Gloucester Pike, Barrington, NJ 08007, (800) 363-1992, edmundoptics.com