• High efficiency at specified wavelengths

• Extensive selection of groove frequencies ranging from 50 to 2400 g/mm

• Aluminum and gold coatings available

• Float glass substrate

• 12.5, 25, and 50 mm square sizes 

Designed for first order Littrow use, Newport\'s plane ruled reflection gratings are blazed for specific wavelengths and generally have high efficiency at those wavelengths. Ruled gratings comprise the majority of diffraction gratings used in spectroscopic instrumentation and are especially useful in systems requiring high resolution.