Build to Order Plane Ruled Diffraction Gratings



For these plane ruled diffraction gratings, the groove spacing and blaze angle determine the distribution of energy. The blaze direction for most gratings is specified for first order Littrow use. In Littrow use, light is diffracted from the grating back toward the source. Gratings used in the Littrow configuration have the advantage of maximum efficiency, or blaze, at specific wavelengths.

  • Ruled for high efficiency at design wavelength and blaze angle
  • Extensive selection of groove frequencies ranging from 1.9 to 5880 g/mm
  • Build to order from 100s of master gratings
  • Special size, substrate and coating options


Figure_2-1a_THUMB
View Standard In-stock Plane Ruled Gratings

Master Grating Options

Plane ruled gratings are listed in order of groove frequency, with the lowest blaze angle 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 Master Grating Code (last 4 digits of a grating's part 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.

Master Grating Code Grooves per mm Nominal Blaze Wavelength
(1st Order Littrow, nm)		 Nominal Blaze Angle Maximum Ruled Area
(Groove Length x Ruled Width, mm)		 Standard Parts Availability Overstock Availability Request a Quote
006R 5880 138 24° 30.5 x 45 Yes Quote
911R 4968 131 19° 90 x 140 Yes Quote
115R 3600 104 10.8° 52 x 52 Yes Quote
160R 3600 130 13.5° 102 x 102 Yes Quote
170R 3600 240 25.6° 64 x 64 Yes Quote
021R 2700 259 20° 102 x 34 Yes Quote
196R 2400 29 2° 26 x 26 Quote
190R 2400 150 10.4° 102 x 102 Yes Quote
150R 2400 240 16.8° 102 x 102 Yes Quote
240R 2400 300 21° 102 x 102 Yes Quote
151R 2200 226.2 14.5° 54 x 54 Yes Quote
102R 2160 173 10.8° 64 x 64 Yes Quote
140R 2160 200 12.5° 102 x 102 Quote
040R 2160 300 19° 102 x 128 Yes Quote
300R 2160 500 32.7° 128 x 154 Yes Quote
195R 1800 180 9.3° 52 x 52 Yes Quote
061R 1800 250 13° 52 x 52 Yes Yes Quote
289R 1800 400 21.1° 102 x 102 Yes Quote
290R 1800 500 26.7° 102 x 102 Yes Yes Quote
128R 1714.3 650 34° 102 x 102 Yes Quote
285R 1700 530 22.49° 102 x 102 Yes Quote
164R 1649.5 375 18° 102 x 102 Quote
118R 1600 200 9.2° 102 x 30 Yes Quote
070R 1500 250 10.8° 52 x 52 Yes Quote
176R 1350 675 27.1° 75 x 96 Yes Quote
188R 1201.6 250 8.6° 102 x 102 Yes Quote
101R 1200 29 1° 50 x 52 Quote
034R 1200 43 1.48° 30 x 50 Quote
130R 1200 120 4.1° 65 x 76 Yes Quote
120R 1200 150 5.2° 154 x 206 Yes Quote
020R 1200 200 7° 154 x 206 Yes Quote
060R 1200 250 8.6° 154 x 206 Yes Yes Quote
030R 1200 300 10.4° 154 x 206 Yes Quote
330R 1200 400 14° 102 x 128 Yes Yes Quote
254R 1200 450 15.7° 155 x 208 Quote
047R 1200 450 15.7° 102 x 102 Yes Quote
280R 1200 500 17.5° 154 x 206 Yes Yes Quote
340R 1200 600 21° 204 x 306 Yes Quote
360R 1200 750 26.7° 154 x 206 Yes Yes Quote
361R 1200 850 30.7° 102 x 102 Yes Quote
067R 1200 900 32.7° 154 x 206 Yes Quote
530R 1200 1000 36.8° 154 x 206 Yes Yes Quote
531R 1200 1100 41.3° 156 x 206 Quote
546R 1200 1100 41.3° 70 x 79 Quote
540R 1200 1200 46° 154 x 206 Yes Quote
105R 1000 250 7.2° 102 x 102 Yes Quote
701R 1000 900 26.7° 102 x 102 Yes Quote
148R 1000 1310 41° 102 x 102 Yes Quote
721R 984.6 140 3.9° 52 x 52 Quote
462R 964 520 14.6° 64 x 64 Yes Quote
266R 900 550 14.3° 154 x 206 Yes Yes Quote
155R 900 1300 35.8° 102 x 102 Yes Quote
369R 830.77 900 19.7° 156 x 206 Yes Quote
035R 830 900 21.4° 64 x 64 Yes Quote
525R 830 1200 30° 154 x 206 Yes Quote
274R 822.58 450 10.7° 51 x 104 Yes Quote
259R 768 425 9.4° 102 x 104 Quote
252R 760 1050 23.5° 102 x 102 Quote
111R 720 2000 43.1° 156 x 206 Yes Quote
051R 716.42 222 4.7° 52 x 52 Yes Quote
455R 700 530 10.5° 104 x 102 Yes Quote
727R 672 832 16.1° 64 x 64 Yes Quote
715R 664.3 2600 68.44° 64 x 64 Yes Quote
720R 625 2800 61.2° 30 x 32 Yes Quote
100R 600 120 2° 102 x 102 Yes Quote
110R 600 150 2.6° 102 x 102 Yes Quote
050R 600 250 4.3° 102 x 128 Yes Yes Quote
010R 600 300 5.2° 154 x 206 Yes Yes Quote
080R 600 400 7° 154 x 206 Yes Yes Quote
260R 600 500 8.6° 154 x 206 Yes Yes Quote
267R 600 650 11.3° 154 x 206 Yes Quote
350R 600 750 13° 154 x 206 Yes Yes Quote
351R 600 800 13.9° 154 x 206 Yes Quote
520R 600 1000 17.5° 154 x 206 Yes Yes Quote
560R 600 1200 22° 154 x 206 Yes Yes Quote
550R 600 1600 28.7° 154 x 206 Yes Yes Quote
660R 600 1850 34° 154 x 206 Yes Quote
132R 600 1900 34° 102 x 102 Yes Quote
024R 600 2160 40.4° 102 x 102 Yes Quote
258R 600 2250 42.5° 154 x 208 Quote
570R 600 2500 49° 154 x 206 Quote
466R 600 2700 54° 102 x 102 Yes Quote
564R 590 240 4° 102 x 102 Quote
264R 588 561 9.5° 52 x 52 Quote
236R 534 2750 46.9° 35 x 45 Quote
069R 500 240 3.4° 102 x 102 Yes Quote
230R 500 330 4.7° 102 x 102 Yes Quote
246R 500 560 8° 154 x 206 Yes Quote
396R 500 770 11.1° 102 x 102 Yes Quote
055R 500 1370 20° 154 x 206 Yes Quote
231R 497 2250 34° 102 x 102 Quote
341R 490.4 750 10.6° 64 x 64 Yes Quote
284R 480 500 6.89° 156 x 212 Quote
194R 450 1800 23.9° 102 x 102 Yes Quote
168R 425.8 1850 23.2° 128 x 102 Quote
074R 424.2 2000 24° 104 x 102 Quote
676R 420 2150 26.7° 52 x 52 Quote
183R 400 250 2.9° 104 x 102 Yes Quote
586R 400 400 4.5° 154 x 206 Yes Quote
581R 400 550 6.3° 102 x 128 Yes Quote
580R 400 850 9.7° 154 x 206 Yes Quote
590R 400 1200 13.9° 154 x 206 Yes Quote
600R 400 1300 15° 102 x 128 Yes Quote
650R 400 1600 18.6° 154 x 206 Yes Quote
162R 400 2100 24.8° 102 x 102 Yes Quote
223R 384.6 520 5.7° 102 x 102 Yes Quote
222R 384.6 605 6.7° 102 x 102 Yes Quote
167R 361.2 2350 25.1° 130 x 102 Yes Quote
496R 360 1000 10.4° 128 x 152 Yes Quote
391R 360 1740 18.2° 64 x 64 Quote
775R 360 2000 21° 102 x 102 Yes Quote
777R 360 2900 31.3° 64 x 64 Quote
778R 360 3700 42° 64 x 64 Yes Quote
243R 345 3600 38.4° 102 x 102 Quote
321R 333 600 5.7° 64 x 64 Yes Quote
172R 300 280 2.4° 104 x 102 Yes Quote
090R 300 300 2.5° 154 x 206 Yes Yes Quote
327R 300 325 2.8° 102 x 102 Yes Quote
091R 300 422 3.6° 154 x 206 Yes Quote
270R 300 500 4.3° 154 x 206 Yes Yes Quote
204R 300 550 4.7° 102 x 102 Yes Quote
180R 300 760 6.5° 102 x 128 Yes Quote
220R 300 860 7.4° 102 x 102 Yes Quote
510R 300 1000 8.6° 204 x 306 Yes Quote
640R 300 1200 10.4° 102 x 102 Yes Quote
806R 300 1700 14.6° 102 x 128 Yes Quote
770R 300 2000 17.5° 154 x 206 Yes Quote
736R 300 2500 22° 102 x 102 Yes Quote
039R 300 2670 23° 102 x 102 Quote
780R 300 3000 26.7° 154 x 206 Yes Quote
800R 300 3500 31.6° 102 x 128 Yes Quote
440R 300 4300 36.8° 154 x 206 Yes Quote
013R 300 4800 46° 102 x 102 Yes Quote
641R 293.53 1300 11.4° 64 x 64 Yes Quote
166R 287.3 3300 28.1° 155 x 208 Quote
801R 287.2 1900 16.2° 64 x 64 Yes Quote
154R 286.52 5000 46° 102 x 102 Yes Quote
803R 285 3800 33.1° 102 x 102 Quote
169R 272.3 1900 15° 154 x 206 Yes Quote
283R 265 1555 11.9° 102 x 102 Quote
286R 265 1600 12.2° 102 x 102 Quote
431R 260 2700 20.5° 64 x 64 Quote
126R 258 315 2.4° 64 x 76 Yes Quote
125R 250 1000 7.2° 64 x 64 Yes Quote
203R 246.16 226 1.6° 52 x 52 Quote
179R 245 4850 36.5° 158 x 208 Quote
107R 245 5000 38° 154 x 206 Yes Quote
820R 240 3750 26.7° 90 x 102 Yes Quote
825R 240 4650 34° 64 x 64 Yes Quote
791R 236.8 1350 9.2° 52 x 52 Yes Quote
789R 235.8 1310 9.25° 64 x 64 Yes Quote
790R 235 750 5.06° 64 x 64 Yes Quote
796R 235 870 5.9° 65 x 76 Quote
217R 223 2450 15.9° 212 x 410 Yes Quote
001R 220 2700 17.5° 102 x 128 Quote
165R 219 4400 28.5° 129 x 104 Yes Quote
866R 210 4300 26.7° 102 x 102 Quote
877R 210 5000 31.7° 154 x 190 Yes Quote
346R 200 730 4.2° 102 x 102 Yes Quote
596R 200 1050 6° 102 x 102 Yes Quote
633R 200 1550 8.95° 154 x 198 Yes Quote
630R 200 1700 10° 102 x 102 Yes Quote
636R 200 2600 15° 204 x 254 Yes Quote
626R 200 3000 17.5° 52 x 52 Quote
103R 200 5000 29.8° 102 x 102 Quote
116R 180 150 0.7° 52 x 52 Yes Quote
870R 180 4500 23.9° 102 x 102 Yes Quote
142R 175 7600 41.6° 154 x 206 Yes Quote
104R 165 7400 37.9° 102 x 102 Yes Quote
250R 158 400 1.82° 134 x 178 Yes Quote
400R 158 800 3.6° 128 x 154 Yes Quote
202R 150 300 1.2° 102 x 102 Yes Quote
201R 150 500 2.2° 128 x 154 Yes Yes Quote
426R 150 800 3.4° 154 x 206 Yes Quote
501R 150 1090 4.7° 102 x 102 Yes Quote
500R 150 1250 5.4° 154 x 206 Yes Quote
349R 150 1450 6.2° 211 x 408 Yes Quote
760R 150 2000 8.6° 154 x 206 Yes Quote
810R 150 2500 10.8° 154 x 206 Yes Quote
690R 150 3000 13° 154 x 206 Yes Quote
860R 150 4000 17.5° 154 x 206 Yes Quote
880R 150 6000 26.7° 154 x 206 Yes Quote
890R 150 8000 36.8° 154 x 206 Yes Quote
885R 135 7400 30° 64 x 64 Yes Quote
616R 121.6 410 1.44° 52 x 52 Yes Quote
065R 120 330 1.1° 102 x 102 Yes Quote
625R 120 3750 13° 102 x 102 Yes Quote
831R 120 7500 26.7° 65 x 76 Quote
746R 120 8300 30° 102 x 102 Yes Quote
748R 120 13000 51.3° 64 x 64 Quote
019R 115 8100 27.8° 64 x 62 Yes Quote
232R 115 10400 36.8° 154 x 206 Yes Quote
138R 110.5 6800 22° 154 x 206 Yes Quote
666R 110 253.8 0.8° 102 x 102 Yes Quote
876R 105 8600 26.7° 84 x 84 Quote
011R 100 780 2.3° 102 x 102 Yes Quote
108R 100 1600 4.6° 156 x 206 Yes Quote
833R 100 2500 7.2° 102 x 102 Yes Quote
886R 100 5200 15° 102 x 96 Yes Quote
826R 100 6500 19° 64 x 64 Quote
830R 100 7500 22° 102 x 128 Quote
836R 100 8100 24° 44 x 50 Yes Quote
970R 100 9000 26.7° 154 x 206 Yes Quote
881R 97.5 4200 11.8° 102 x 102 Quote
829R 95.1 11030 32° 99 x 102 Quote
309R 90 1900 4.9° 212 x 408 Quote
686R 90 2750 7.1° 102 x 102 Quote
821R 90 6700 17.5° 64 x 64 Quote
036R 90 10000 26.7° 102 x 102 Yes Quote
476R 86 950 2.3° 65 x 76 Yes Quote
754R 85 1350 3.2° 102 x 102 Yes Quote
755R 85 2140 5.1° 84 x 84 Yes Quote
480R 80 870 2° 84 x 84 Yes Quote
215R 80 4250 9.8° 204 x 408 Quote
005R 79.35 15000 35° 64 x 58 Yes Quote
756R 75 1700 3.6° 102 x 102 Yes Quote
750R 75 2000 4.3° 154 x 206 Yes Quote
751R 75 2500 5.4° 154 x 206 Yes Quote
740R 75 3000 6.5° 154 x 206 Quote
856R 75 4650 10° 102 x 102 Quote
950R 75 8000 17.5° 102 x 128 Yes Quote
840R 75 10000 22° 154 x 206 Yes Quote
960R 75 12000 26.7° 154 x 206 Yes Quote
741R 70 3000 6° 64 x 64 Yes Quote
064R 69.63 750 1.49° 64 x 64 Quote
843R 61.97 10000 18.1° 84 x 84 Quote
129R 60 750 1.26° 64 x 64 Yes Quote
920R 60 16000 28.7° 154 x 206 Quote
921R 58 3600 6° 102 x 102 Yes Quote
458R 56 19450 33° 204 x 410 Quote
235R 53 1750 2.7° 102 x 102 Yes Quote
310R 50 600 0.9° 128 x 206 Yes Quote
850R 50 9000 13° 154 x 206 Quote
855R 50 11500 16.7° 91 x 102 Quote
937R 50 12000 17.5° 102 x 102 Yes Quote
910R 50 18000 26.7° 154 x 206 Yes Quote
946R 50 19500 29.2° 102 x 102 Quote
189R 46.1 19600 46.1° 102 x 87 Quote
131R 45 1750 2.22° 64 x 64 Yes Quote
900R 45 20000 26.7° 52 x 52 Yes Quote
457R 44.5 20750 27.5° 204 x 410 Yes Quote
842R 41.85 10600 12.8° 84 x 84 Quote
811R 40.96 3200 3.7° 52 x 52 Quote
923R 40 4800 5.5° 154 x 190 Yes Quote
932R 40 15000 17.5° 84 x 84 Quote
980R 40 22500 26.7° 154 x 206 Yes Quote
904R 36.152 1300 1.4° 58 x 58 Quote
903R 36.152 3250 3.5° 58 x 58 Quote
902R 36.152 4250 4.5° 58 x 58 Quote
146R 36 10100 10.5° 154 x 206 Quote
906R 35 2300 2.3° 65 x 76 Quote
934R 35 9200 9.3° 64 x 64 Yes Quote
033R 32 10000 9.21° 64 x 64 Quote
135R 31.7 6800 6.18° 154 x 206 Yes Quote
922R 30.7 4880 4.3° 102 x 91 Quote
256R 30 800 0.7° 102 x 102 Quote
606R 30 1100 1.1° 102 x 102 Yes Quote
186R 30 2100 1.8° 102 x 102 Yes Quote
933R 30 8000 6.9° 64 x 60 Yes Quote
042R 30 95300 8.2° 64 x 64 Quote
931R 30 25000 20° 52 x 52 Quote
930R 30 30000 26.7° 102 x 128 Quote
936R 29.5 11400 9.7° 64 x 64 Quote
976R 25 36000 26.7° 52 x 52 Quote
123R 23.5 10000 6.75° 102 x 102 Quote
965R 22 25000 16° 102 x 102 Yes Quote
841R 21.36 10600 6.5° 84 x 84 Yes Quote
966R 21 28600 17.5° 64 x 64 Quote
956R 20 22500 13° 102 x 102 Quote
940R 20 45000 26.7° 102 x 102 Yes Quote
944R 17.5 4200 2.1° 102 x 102 Yes Quote
941R 14.3 4000 1.74° 52 x 52 Quote
942R 14.3 8000 3.33° 52 x 52 Quote
916R 12 6800 2.3° 65 x 76 Yes Quote
156R 11.5 4000 1.3° 65 x 76 Quote
996R 7.9 112500 26.7° 154 x 206 Quote
145R 1.99 21400 1.2° 154 x 206 Yes Quote

Features

Plane Ruled Diffraction Grating Construction

In general, for ruled diffraction gratings the groove spacing determines the diffraction angles, and the groove depth and blaze angle determines how diffracted energy is distributed between diffraction orders. Designed for first order Littrow use, Newport’s Plane Ruled Reflection Gratings are blazed to achieve extremely high single-order diffraction efficiency at particular design wavelengths. At Newport, we have three ruling engines in full-time operation, each producing high-quality master gratings each year. These ruling engines provide gratings with triangular groove profiles, very low Rowland ghosts, and high resolving power. Mechanically ruled, individual grooves are burnished with a diamond tool against a thin coating of evaporated metal. Utilizing a high fidelity cast replication process, developed and enhanced through years of research and manufacturing experience, we have the ability to provide duplicates of master gratings that equal the quality and performance of the master grating.

33009-25x25-2
Figure_2-1a_THUMB

Optimum Diffraction Grating Orientation

Plane Ruled Diffraction Gratings are most efficient when used near the design wavelength in the Littrow configuration, that is aligned so that the diffraction angle of the dominant diffraction order is coincident with the input beam, effectively behaving as a retroreflector at a specific wavelength. For blazed gratings, maximum efficiency occurs for wavelengths that the Littrow condition at the angle normal to the blazed grating facets. As ruled blaze gratings are asymmetric, correct orientation is indicated with an arrow marking on the size of the substrate. The arrow is on the side of the substrate perpendicular to the ruled grooves, and points toward the steeper edge of the triangular groove profile. Equivalently, the arrow points away from the grating normal toward the facet normal. The arrow should point toward the incident (and diffracted) beam.

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 Size Options

Grating size is usually dictated by the desired throughput, which is a function of the source and detector characteristics, the resolution of the optical system, and the required data-acquisition rate. The ruled area of each plane grating is shown in the specification table as the "Maximum Ruled Area" which is the groove length followed by the ruled width (for example, 65 x 75 mm indicates a groove length of 65 mm and a ruled width of 75 mm). This determines the largest size allowed from the size options table below.

The dimensions of the ruled area and the substrate may be altered from the regular catalog sizes at an additional cost. Special elongated grating shapes are available (e.g., for echelles and laser tuning gratings).

Size Code BBB Substrate Dimensions (mm) Ruled Area (mm)
108 16.5 x 58 x 10 12 x 52
004 30 x 30 x 10 26 x 26
066 28.5 x 58 x 10 23 x 52
107 40 x 40 x 10 36 x 36
060 25 x 100 x 16 20 x 96
067 50 x 50 x 10 46 x 46
022 30 x 110 x 16 26 x 102
006 58 x 58 x 10 52 x 52
009 68.6 x 68.6 x 9.1 64 x 64
119 68 x 68 x 6 64 x 64
114 50 x 100 x 16 46 x 96
033 76 x 76 x 16 70 x 70
010 76 x 85 x 16 70 x 79
013 90 x 90 x 16 84 x 84
015 110 x 110 x 16 102 x 102
017 110 x 135 x 25 102 x 128
020 135 x 165 x 30 128 x 154
025 110 x 220 x 30 102 x 204
027 135 x 220 x 35 128 x 204
028 165 x 220 x 35 154 x 206

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.

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