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Grating Links Catalogue Definitions Specifications Equations OEM Links OEM Products Gratings Spectrographs Monochromators Detectors Assemblies Design Table 3, Blazed Holographic Plane Gratings The table below lists the range of plane blazed holographic gratings available from Jobin Yvon. The last three digits of the reference number indicate the size of the grating. Select these digits from the Size Table that appears just after the following table and replace the X's in the latter table with the digits. In the Spectral Range column, "B" denotes blazed by ion-etching and indicates the blaze wavelength. Typically the usable efficiency range of a blazed holographic grating can be approximately calculated as 2/3 x blaze wavelength to 2x blaze wavelength. Blazed holographic gratings are available in sizes up to 110 mm x 110 mm. BLAZED HOLOGRAPHIC PLANE GRATINGS Grooves per mm Spectral Range (nm) Reference Number & Efficiency Curve 2400 B 250 530 13 XXX 2400 B 330 530 11 XXX 2400 B 400 530 15 XXX 1800 B 250 530 20 XXX 1800 B 400 530 18 XXX 1200 B 250 530 25 XXX 1200 B 330 530 22 XXX 1200 B 500 530 24 XXX 1200 B 630 530 27 XXX 1200 B 750 530 28 XXX 1200 B 900 530 50 XXX 950 B 900 530 60 XXX 900 B 850 530 66 XXX 600 B 500 530 29 XXX GRATING SIZE TABLE CODE SIZE (mm) h x w x t 020 25 x 25 x 8 050 34 x 34 x 10 070 30 x 40 x 10 080 44 x 44 x 10 090 40 x 60 x 10 330 50 x 50 x 6 110 58 x 58 x 10 120 68 x 68 x 9 140 76 x 76 x 16 150 90 x 90 x 16 160 80 x 110 x 16 180 110 x 110 x 16 190 110 x 135 x 25 200 120 x 140 x 20

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