Overview

For a plane ruled diffraction grating, the groove spacing and blaze angle determine the distribution of energy. The blaze direction for most gratings is specified for first-order Littrow use. In Littrow use, light is diffracted from the grating back toward the source. Gratings used in the Littrow configuration have the advantage of maximum efficiency, or blaze, at specific wavelengths.

• 1200 grooves per mm
• 400 nm nominal blaze wavelength
• 14° nominal blaze angle
• Master 1264 default, others special upon request