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Replicated Holographic Diffraction Gratings

Standard replicated diffraction gratings are produced from ruled and holographic originals and are intended for use in moderate resolution spectrophotometers, spectrometers and monochromators where low cost, high efficiency and low stray light are of primary concern. Since standard diffraction gratings are cut from larger replicas, they are ruled over their entire surface. Incident radiation should, however, be restricted to 90% of the ruled area.

Standard Series Replicated Holographic Diffraction Gratings
Grooves / MM	Optimum Efficiency	Dispersion (nm/mr)	12.7x12.7 x 6	25x25 x 6	25x25 x 9.5	30x30 x 9.5	50x50 x 9.5	12.5x25 x 6	12.5x25 x 9.5	25x50 x 9.5	Eff Curve
600	UV	1.67 @ 250 NM	3-4021	3-8021	3-2021	3-3021	3-5021	3-6021	3-1021	3-7021
1000	UV	0.99 @ 250 NM	3-4061	3-8061	3-2061	3-3061	3-5061	3-6061	3-1061	3-7061
1200	UV	0.82 @ 250 NM	3-4121	3-8121	3-2121	3-3121	3-5121	3-6121	3-1121	3-7121
1200	VIS	0.79 @ 500 NM	3-4122	3-8122	3-2122	3-3122	3-5122	3-6122	3-1122	3-7122
1800	UV	0.54 @ 250 NM	3-4181	3-8181	3-2181	3-3181	3-5181	3-6181	3-1181	3-7181
1800	VIS	0.50 @ 500 NM	3-4182	3-8182	3-2182	3-3182	3-5182	3-6182	3-1182	3-7182
2400	UV	0.40 @ 250 NM	3-4241	3-8241	3-2241	3-3241	3-5241	3-6241	3-1241	3-7241
2400	VIS	0.33 @ 500 NM	3-4242	3-8242	3-2242	3-3242	3-5242	3-6242	3-1242	3-7252
3600	UV	0.25 @ 250 NM	3-4361	3-8361	3-2361	3-3361	3-5361	3-6361	3-1361	3-7361

• All gratings are measured in the Littrow mounting in

• All gratings utilize an aluminum (AI) reflective coat

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