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Table 10 - Concave Holographic Reflectance Gratings

For the gratings listed in Parts A and B of this table, the figure at left defines the following parameters:
a incidence angle
r distance from entrance slit to grating center
b diffraction angle
r' distance from grating center to image

The angles a  and b  are measured from the grating normal; their algebraic signs are opposite if they lie on opposite sides of the normal.
Part A - Gratings for Flat-Field Spectrographs (for use with array detectors)

Gratings in this table are listed in order of increasing groove frequency (grooves per mm).

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Catalog
Number		 Grooves
per mm		 Substrate
Radius
(mm)		 Imaging
Range
ml1, ml2(nm)		 RLD
(nm/mm)		 Entrance Slit
r and a
(mm, deg)		 l1 focus
r' and b
(mm, deg)		 l2 focus
r' and b
(mm, deg)		 Ruled
Area
(mm)		 Substrate
Dimensions
(mm)		 Input
f/no
52056BK-*-028H  200 152.4 290-1020 32.3 151, 5.0 153,2,-8.3 153,2,-17.0 Ø44 Ø50.0 3.5
52066BK-*-018H  233.9 131.53 190-400 33 148, 3.0 116-5.6 113,-8.4 Ø60 Ø63.5 2.5
52067BK-*-040H * 282.7 224.4 190-545 14.5 235, -5.3 219, 8.4 228, 14.3 Ø60 Ø63.5 3.9
545-900 252, 0.4 4.2
52066BK-*-001H  454.27 131.53 285-720 17 130, 11.3 130, -3.8 128, 736 Ø58 Ø63.5 2.2
52057BK-*-014H  435.9 112.2 190-400 19.5 109, -6.1 114, 10.9 113, 16.3 Ø47 Ø50.8 2.3
52034BK-*-004H  664 78.08 340-700 18 80, -13.3 80, 0.2 84, -13.6 Ø29 Ø32.0 2.7
52001BK-*-021H  792.8 210.8 380-780 4.5 231, 3.0 225, 15.4 251, 30.2 Ø95 Ø100.0 2.4
52066BK-*-002H  813.5 131.53 380-705 9.5 130, 22.3 128, -4.0 129, 11.2 Ø60 Ø63.5 2.2
52052PX-*-017H  980 96.4 340-600 7.7 105, +4.0 105, 15.3 118, 31.2 45 x 40 Ø45.0 2.3
52049BK-*-012H  1300 100 340-650 7.8 94, -31.1 99, 4.3 97, -19.1 Ø38 Ø42.0 2.9
52064BK-*-008H  1803.8 302.5 753-784 1.2 345, 67.5 387, -25.8 394, -29.4 50 x 50 Ø62.5 6.3
52071BK-*-007H  2197 352 277-313 1 575, 4.9 288, -43.9 296, -50.6 Ø55 Ø70.0 10.5

RLD - reciprocal linear dispersion

* This flat-field spectrograph grating is designed to produce two aberration-corrected spectra in the same place (using different entrance slit locations).

Part B - Gratings for Rowland Circle Spectrographs

Gratings in this table are listed in order of increasing groove frequency (grooves per mm).

Catalog
Number		 Grooves
per mm		 Substrate
Radius (mm)		 RLD
(nm/mm)		 Ruled
Area
(mm)		 Substrate
Dimensions
(mm)		 Spectral
range
(nm)		 Modulation
52011BK-*-003H 1200 498.1 16.7 Ø60 Ø63.5 130-900 low
52071BK-*-025H 1760 352 16.1 Ø65 Ø70.0 650-1100 low
52017BK-*-009H 1800 750 7.4 Ø60 Ø63.5 250-900 medium
52021BK-*-032H 2160 998.8 0.4 Ø59 Ø63.5 210-350 medium
52017BK-*-520H 3600 750 5.6 Ø60 Ø63.5 150-500 medium
52011BK-*-530H 3600 498.1 5.6 Ø60 Ø63.5 180-500 high
52011BK-*-520H 3600 498.1 5.6 Ø60 Ø63.5 150-500 medium

 

Part C - Gratings for Constant-Deviation Monochromators
For the gratings listed in Part C of this table, the figure at left defines the following parameters:
a incidence angle
r distance from entrance slit to grating center
b diffraction angle
r' distance from grating center to image
2K angle from diffracted beam to incident beam

Gratings in this table are listed in order of increasing groove frequency (grooves per mm).

Catalog
Number		 Grooves
per mm		 Substrate
Radius
(mm)		 Imaging
range
ml1,
ml2 (nm)		 Blaze
wavelength
(nm)		 RLD
(nm/mm)		 Entrance slit
r
(mm)		 Exit slit
r'
(mm)		 Deviation
angle 2K
(deg)		 Ruled
Area
(mm)		 Substrate
Dimensions
(mm)		 Input
f/no		 Efficiency
Curves
52094BK-*-096H  1197.9 104.7 200-1000 300 7 105 100 34.7 40 x 40 42.4 x 42.4 2.5  
52094BK-*-097H  1200 104.7 350-1590 450 7 105 100 34.7 40 x 40 42.4 x 42.4 2.5  
52027BK-*-010H  1200 112.2 200-800 250 8.5 100 94 61.6 30 x 30 32 x 32 3.6  
52027BK-*-006H  1200 112.2 200-800 200 8.5 100 94 61.6 30 x 30 32 x 32 3.6  
52057BK-*-022H  1200 112.2 325-950 350 7 91.1 117.7 51.2 Ø47 Ø50.8 2.5  
52057BK-*-020H  1200 112.2 325-950 -- 7 91.1 117.7 51.2 Ø47 Ø50.8 2.5  
52052PX-*-023H  1350 96.4 190-700 250 8 91.3 91.3 45 Ø40 Ø45 2.3  
52093BK-*-095H  1500 82.3 200-800 250 8 74.73 80 47.1 26 x 26 28 x 28 3.7 view

RLD - reciprocal linear dispersion

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