Using aberration-corrected monochromator grating, a single concave grating disperses, collimates and refocuses the light from the entrance slit onto the exit slit. The angle between the incident beam and the selected diffraction beam are fixed. Wavelength scanning is obtained through a simple rotation of the grating. These gratings are computer-optimized to produce high quality images with a minimum of astigmatism and coma.
Catalog
Number
Grooves
(l/mm)
Spectral Region
(nm)
Blaze Wavelength
(nm)
Substrate
Radius
(mm)
Ra
(mm)
Rb
(mm)
2K
Ruled Area
(H×W mm2)
H31-001
1200
200-800
210
112
100
94
61.6°
32×32
H31-002
1200
250-800
250
112
100
94
61.6°
32×32
H31-003
1200
250-800
290
112
100
94
61.6°
32×32
H31-004
1200
200-800
200
224
200
188
61.6°
40×45
Concave Holographic Gratings for Monochromator
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