Build to Order Concave Ruled Diffraction Gratings

Concave ruled gratings are usually blazed as a natural consequence of the ruling process. They operate with higher ƒ/numbers and usually offer higher diffraction efficiencies.

Designed for Rowland Circle Spectrographs
A variety of concave radius options
High dispersion and resolution

Master Grating Options

Ruled concave gratings are listed in order of substrate radius, with the lowest blaze wavelength listed first. Blaze wavelengths listed are for the first-order Littrow configuration. The maximum ruled area is groove length x ruled width. Click on a Catalog Number below to view master grating efficiency curves. Use the request a quote to get a quote based on your requirements. For additional diffraction grating options and custom capabilities, please see the Features section.

Catalog Number	Grooves per mm	Concave Radius (mm)	Nominal Blaze Wavelength	Nominal Blaze Angle	Ruled Area (mm)	Substrate Size (mm)	Request a Quote
52000BK-*-800D^T	2400	400.7	30 nm	2.2°	38 x 30	Φ50.8	Quote
52000BK-*-700D	1281	400.7	70 nm	2.5°	38 x 30	Φ50.8	Quote
52000BK-*-401D	600	400.7	80 nm	1.4°	38 x 30	Φ50.8	Quote
52000BK-*-100D^T	420	400.7	100 nm	1.2°	30 x 30	Φ50.8	Quote
52000BK-*-400D^T	600	400.7	100 nm	1.7°	38 x 30	Φ50.8	Quote
52000BK-*-710D^B	1200	400.7	103 nm	3.5°	38 x 30	Φ50.8	Quote
52000BK-*-010D	75	400.7	120 nm	0.25°	32 x 30	Φ50.8	Quote
52000BK-*-410D^T	600	400.7	150 nm	2.5°	38 x 30	Φ50.8	Quote
52000BK-*-720D	1200	400.7	206 nm	7.1°	38 x 30	Φ50.8	Quote
52000BK-*-040D	133.6	400.7	546 nm	2.1°	38 x 30	Φ50.8	Quote
52011BK-*-709D^T	1200	498.1	70 nm	2.4°	50 x 30	Φ63.5	Quote
52011BK-*-721D	2700	498.1	150 nm	11.7°	50 x 30	Φ63.5	Quote
52011BK-*-411D^T	600	498.1	150 nm	2.5°	50 x 30	Φ63.5	Quote
52011BK-*-781D	1200	498.1	150 nm	5.2°	50 x 30	Φ63.5	Quote
52011BK-*-761D	1200	498.1	200 nm	7°	50 x 30	Φ63.5	Quote
52011BK-*-821D	2400	498.1	230 nm	16°	55 x 30	Φ63.5	Quote
52011BK-*-725D	2700	498.1	230 nm	18.2°	50 x 30	Φ63.5	Quote
52011BK-*-430D	600	498.1	350 nm	6°	46 x 35	Φ63.5	Quote
52011BK-*-780D	1200	498.1	520 nm	18.2°	40 x 40	Φ63.5	Quote
52011BK-*-041D	300	498.1	550 nm	4.7°	50 x 30	Φ63.5	Quote
52011BK-*-441D	600	498.1	580 nm	10°	40 x 40	Φ63.5	Quote
52011BK-*-750D	1200	498.1	600 nm	21.1°	50 x 30	Φ63.5	Quote
52017BK-*-822D	2400	750	300 nm	21.1°	50 x 30	Φ63.5	Quote
52017BK-*-645D	1071	750	483 nm	16°	45 x 35	Φ63.5	Quote
52017BK-*-280D	1200	750	500 nm	17.5°	50 x 30	Φ63.5	Quote
52015BK-*-652D	981.8	750	631 nm	18°	80 x 40	Φ100	Quote
52015BK-*-680D^B	85.6	750	3.17 μm	7.8°	46 x 60	Φ100	Quote
52025BK-*-691D	1200	995.4	45 nm	1.5°	30 x 50	Φ114.3	Quote
52025BK-*-702D^T	1200	995.4	80 nm	2.7°	96 x 56	Φ114.3	Quote
52025BK-*-812D	2400	995.4	80 nm	5.5°	60 x 60	Φ114.3	Quote
52025BK-*-403D^T	600	995.4	90 nm	1.5°	96 x 56	Φ114.3	Quote
52025BK-*-784D	1200	995.4	120 nm	4.1°	96 x 56	Φ114.3	Quote
52025BK-*-414D^T	600	995.4	150 nm	2.5°	96 x 56	Φ114.3	Quote
52025BK-*-706D	1200	995.4	150 nm	5.2°	96 x 56	Φ114.3	Quote
52025BK-*-422D^B	600	995.4	200 nm	3.4°	96 x 56	Φ114.3	Quote
52025BK-*-763D	1200	995.4	250 nm	8.7°	96 x 56	Φ114.3	Quote
52025BK-*-421D	600	995.4	300 nm	5.2°	96 x 56	Φ114.3	Quote
52025BK-*-150D	300	995.4	700 nm	6°	96 x 56	Φ114.3	Quote
52025BK-*-070D	300	995.4	1.5 μm	13°	96 x 56	Φ114.3	Quote
52020BK-*-901D	3600	998.8	10 nm	1°	20 x 25	30 x 25	Quote
52020BK-*-801D	2160	998.8	16 nm	1°	20 x 25	30 x 25	Quote
52020BK-*-782D	1200	998.8	29 nm	1°	20 x 25	30 x 25	Quote
52020BK-*-810D	2160	998.8	48 nm	3°	20 x 25	30 x 25	Quote
52020BK-*-402D	600	998.8	58 nm	1°	20 x 20	30 x 25	Quote
52023BK-*-703D^T	1200	998.8	60 nm	2°	50 x 40	Φ100	Quote
52020BK-*-300D	576	998.8	61 nm	1°	24 x 20	25 x 30	Quote
52020BK-*-762D	1200	998.8	65 nm	2.3°	20 x 20	25 x 30	Quote
52021BK-*-802D	1440	998.8	75 nm	3.3°	50 x 30	Φ63.5	Quote
52021BK-*-811D	2400	998.8	80 nm	5.5°	50 x 30	Φ63.5	Quote
52023BK-*-705D^T	1200	998.8	80 nm	2.7°	80 x 40	Φ100	Quote
52020BK-*-412D	600	998.8	120 nm	2°	20 x 25	30 x 25	Quote
52020BK-*-310D^T	576	998.8	121 nm	2°	24 x 20	25 x 30	Quote
52020BK-*-320D	576.39	998.8	121 nm	2°	24 x 20	25 x 30	Quote
52021BK-*-783D	1200	998.8	150 nm	5.2°	50 x 30	Φ63.5	Quote
52021BK-*-413D	600	998.8	160 nm	2.75°	50 x 30	Φ63.5	Quote
52021BK-*-712D	2400	998.8	170 nm	11.8°	50 x 30	Φ63.5	Quote
52023BK-*-178D	1200	998.8	170 nm	5.7°	80 x 40	Φ100	Quote
52021BK-*-820D	2160	998.8	200 nm	12.5°	50 x 30	Φ63.5	Quote
52058FS-*-825D	1440	998.8	200 nm	8.3°	40 x 24	Φ50.8	Quote
52020BK-*-020D	300	998.8	233 nm	2°	20 x 25	30 x 25	Quote
52021BK-*-420D	600	998.8	276 nm	4.75°	50 x 30	Φ63.5	Quote
52029BK-*-311D^T	1110.9	998.8	280 nm	8.9°	80 x 36	45 x 90	Quote
52029BK-*-321D	1100.9	998.8	280 nm	8.9°	80 x 36	45 x 90	Quote
52058FS-*-930D	1666.7	998.8	347 nm	16.8°	50 x 30	Φ100	Quote
52023BK-*-930D	1666.7	998.8	347 nm	16.8°	50 x 30	Φ100	Quote
52021BK-*-830D	1440	998.8	400 nm	16.7°	64 x 64	Φ63.5	Quote
52021BK-*-840D	1200	998.8	400 nm	14°	44 x 38	Φ63.5	Quote
52020BK-*-442D	600	998.8	460 nm	7.9°	20 x 20	30 x 25	Quote
52020BK-*-041D	300	998.8	488 nm	4.2°	20 x 20	25 x 30	Quote
52021BK-*-651D	1080.7	998.8	500 nm	15.7°	50 x 30	Φ63.5	Quote
52023BK-*-845D	1440	998.8	580 nm	25°	50 x 30	Φ100	Quote
52029BK-*-880D^B	2400	998.8	580 nm	44.2°	80 x 30	45 x 90	Quote
52058FS-*-650D	1080	998.8	600 nm	18.9°	40 x 24	Φ50.8	Quote
52021BK-*-653D	1080	998.8	600 nm	18.9°	50 x 30	Φ63.5	Quote
52021BK-*-850D	1440	998.8	700 nm	30.3°	50 x 30	Φ63.5	Quote
52020BK-*-690D	1200	998.8	873 nm	30°	20 x 20	25 x 30	Quote
52020BK-*-091D	200	998.8	3.2 μm	18.5°	20 x 25	30 x 25	Quote
52029BK-*-180D	423	998.8	3.3 μm	44.2°	80 x 30	45 x 90	Quote
52029BK-*-281D	425.7	998.8	3.3 μm	44.2°	80 x 30	45 x 90	Quote
52030BK-*-404D	600	1188	90 nm	1.5°	45 x 48	58 x 55	Quote
52034BK-*-815D	1800	1200	657 nm	35°	50 x 30	Φ63.5	Quote
52033BK-*-785D	1200	1500.5	180 nm	6.2°	80 x 40	Φ100	Quote
52033BK-*-814D	1800	1500.5	180 nm	9.3°	50 x 50	Φ100	Quote
52031BK-*-610D^A	960	1500.5	200 nm	5.5°	50 x 32	Φ63.5	Quote
52031BK-*-813D	1440	1500.5	200 nm	8.3°	52 x 35	Φ63.5	Quote
52031BK-*-823D	1920	1500.5	280 nm	15.5°	52 x 35	Φ63.5	Quote
52031BK-*-831D	1920	1500.5	300 nm	18.2°	52 x 35	Φ63.5	Quote
52033BK-*-120D	415.5	1500.5	300 nm	3.5°	80 x 40	Φ100	Quote
52031BK-*-620D	960	1500.5	300 nm	8.3°	50 x 32	Φ63.5	Quote
52031BK-*-764D	1200	1500.5	300 nm	10.4°	52 x 32	Φ63.5	Quote
52033BK-*-730D	1200	1500.5	300 nm	10.4°	78 x 42	Φ100	Quote
52033BK-*-240D	450	1500.5	550 nm	7.2°	80 x 40	Φ100	Quote
52033BK-*-550D	635.3	1500.5	600 nm	11°	80 x 40	Φ100	Quote
52041BK-*-804D^T	2400	1999.5	30 nm	2°	102 x 75	85 x 110	Quote
52038BK-*-707D	1200	1999.5	52 nm	1.8°	35 x 25	35 x 45	Quote
52038BK-*-803D	1440	1999.5	78 nm	3.2°	35 x 25	35 x 45	Quote
52038BK-*-405D	600	1999.5	89 nm	1.5°	35 x 25	35 x 45	Quote
52038BK-*-611D	960	1999.5	140 nm	3°	35 x 25	35 x 45	Quote
52043BK-*-786D	1200	1999.5	180 nm	6.2°	80 x 40	Φ100	Quote
52038BK-*-423D	600	1999.5	200 nm	3.5°	35 x 25	35 x 45	Quote
52043BK-*-824D	1667	1999.5	230 nm	11°	80 x 40	Φ100	Quote
52080BK-*-322D	600	1999.5	230 nm	4°	155 x 78	85 x 160	Quote
52043BK-*-832D	1440	1999.5	400 nm	16.7°	80 x 40	Φ100	Quote
52043BK-*-835D	833.33	1999.5	460 nm	11°	80 x 40	Φ100	Quote
52041BK-*-042D^T	133.6	1999.5	546 nm	2°	102 x 75	85 x 110	Quote
52038BK-*-060D	300	1999.5	860 nm	7.4°	25 x 35	35 x 45	Quote
52047BK-*-801D	2400	2217.6	29 nm	2°	50 x 30	Φ63.5	Quote
52047BK-*-708D	1200	2217.6	60 nm	2°	50 x 30	Φ63.5	Quote
52047BK-*-406D	600	2217.6	87 nm	1.5°	50 x 30	Φ63.5	Quote
52047BK-*-415D	600	2217.6	120 nm	2°	50 x 30	Φ63.5	Quote
52047BK-*-021D	300	2217.6	240 nm	2°	52 x 30	Φ63.5	Quote
52051BK-*-704D	1200	2998.3	30 nm	1°	50 x 32	Φ63.5	Quote
52051BK-*-701D	1200	2998.3	60 nm	2°	50 x 32	Φ63.5	Quote
52051BK-*-709D	1200	2998.3	75 nm	2.5°	50 x 32	Φ63.5	Quote
52059BK-*-788D	1200	2998.3	140 nm	4.7°	150 x 65	76 x 160	Quote
52051BK-*-416D	600	2998.3	150 nm	2.5°	50 x 32	Φ63.5	Quote
52053BK-*-787D	1200	2998.3	150 nm	5.2°	80 x 50	Φ101.6	Quote
52053BK-*-520D	830.8	2998.3	250 nm	6°	80 x 50	Φ101.6	Quote
52053BK-*-765D	1200	2998.3	300 nm	10.4°	80 x 50	Φ101.6	Quote
52059BK-*-766D	1200	2998.3	300 nm	10.2°	150 x 65	76 x 160	Quote
52053BK-*-032D	300	2998.3	300 nm	2.2°	75 x 48	Φ101.6	Quote
52051BK-*-030D	300	2998.3	300 nm	2.5°	32 x 50	Φ63.5	Quote
52051BK-*-431D	600	2998.3	360 nm	6.2°	50 x 32	Φ63.5	Quote
52053BK-*-460D	600	2998.3	550 nm	9.5°	80 x 50	Φ101.6	Quote
52059BK-*-752D	1200	2998.3	600 nm	21°	150 x 65	76 x 160	Quote
52053BK-*-443D	600	2998.3	630 nm	11.2°	80 x 56	Φ101.6	Quote
52014FS-*-900D^A	3600	3997	30 nm	3°	120 x 120	130 x 140	Quote
52014FS-*-050D	200.32	3997	546 nm	3°	130 x 120	130 x 140	Quote
52086BK-*-753D	1200	10685	750 nm	26.7°	150 x 85	Φ180	Quote
A: Double Grating with Alignment Section			B: Bipartite Ruling		T: Tripartite Ruling

Features

Catalog Part Number System

All standard Richardson gratings have a part number according to the following format:

AA BBB CC DD - EEE x

AA indicates the type of grating (e.g., diced, plano, grism).
BBB indicates the size of the grating substrate.
CC indicates the substrate material
DD indicates the type of coating
EEE indicates the master grating groove parameters
x indicates the master grating type (e.g., ruled, holographic, echelle)

Please see Diffraction Grating Part Number System for additional information.

Grating Substrate Material Options

The standard substrate material for small and medium-sized gratings is specially annealed borosilicate crown glass. Low expansion material can be supplied on request. Float glass may be used for small, diced gratings. In addition, replicas may be furnished on metal substrates, such as copper or aluminum, for applications with extreme thermal conditions. The substrate material codes CC are given below:

Substrate Material Code CC	Substrate Material
AL	Aluminum
BF	Borosilicate float or equivalent
BK	BK-7 glass or equivalent
CU	Copper
FL	Float glass
FS	Fused silica or equivalent
LE	Low-expansion glass
SP	Special glass (unspecified)
TB	BK-7, transmission grade
TF	Fused silica, transmission grade
UL	Corning ULE® glass
ZD	Schott Zerodur®

Diffraction Grating Coating Options

All reflection gratings include a standard aluminum (Al) reflectance coating (Coating Code "01"). Gratings can also be replicated in gold (Au), or overcoated with magnesium fluoride (MgF₂) or silver (Ag), to enhance reflectivity in certain spectral regions. The coating material codes DD are shown below:

Coating Code DD	Coating Material	Application
01	Aluminum (Al)	General purpose applications.
02	Gold (Au)	Offers higher reflectivity in the infrared.
03	Magnesium Fluoride (MgF₂)	Used to prevent oxidation of aluminum (Al) coatings, which helps maintain high reflectivity in the ultraviolet over time.
06	Protected Silver (Ag)	Offers higher reflectivity in the visible and near infrared. Silver is protected from tarnishing by a dielectric coating, which helps maintain reflection over time.

Custom Diffraction Gratings

Newport is pleased to discuss special and unusual applications that are not addressed by our build to order catalog diffraction gratings. In some instances, none of the hundreds of master gratings we have in stock meet specifications, so a new master may be required. Please see Custom Diffraction Gratings for additional information on our capabilities.