MS257 Grating, Ruled, 2400 lines/mm, 275 nm blaze, 200-700 nm range

Factory grating replacement services are no longer available for the MS257 series, contact your Newport sales representative for details.

The model 77740 grating is for use with the Oriel^® MS257™ monochromator and imaging spectrograph. This grating is installed by Newport onto either the 77706 Single Grating Mount or 77708 Multiple Grating Mount, that can hold up to four gratings (ordered separately). The grating efficiency exceeds 20% over its entire operating range, with a peak efficiency greater than 65% at its blaze wavelength.