Grating Dispersion Calculator
The grating curves show typical relative efficiency for the various blaze wavelengths and should be used as a comparison guide only.
Detector
Select Detector
PIXIS/BLAZE/PYLON/100/400
PIXIS/PyLoN:256
PIXIS/PyLoN:2K
SOPHIA:2048
SOPHIA:4096
ProEM:512B
ProEM:1024B
ProEM:1600
KURO 1200B sCMOS-Backlit
KURO 2048B sCMOS-Backlit
PIMAX:1024x256-25mm
PIMAX:1024x256-18mm
PIMAX:1024i-18mm
PIMAX4:512EM
PIMAX4:1024EM
LANSIS 261 2084x263
LANSIS 207 EMCCD 1600x200
LANSIS 424 BI-DD 2048x2048
LANSIS 471 1024x1024
LANSIS 301 FI 1024x256
LANSIS 261HR 2084x263 Super DD
NIRvana NIR/SWIR
Pylon IR: 1024
IsoPlane-81 1024B-FT
Center Wavelength(nm)
Hor.pixels
Vert. pixels
Pixel Size µm
CCD width/mm
Select Excitation Laser
830 nm
785 nm
660 nm
633 nm
532 nm
405 nm
355 nm
266 nm
Option
Linewidth, pixels
Laser wavelength (nm)
Spectrograph
SP-2150
IsoPlane 160
HRS-300
SP-2300
IsoPlane SCT 320
HRS-500
SP-2500
HRS-750
SP-2750
LS-785
IsoPlane 81 (FERGIE)
Focal Length mm
Aperture ratio
Slit width
10 µm
20 µm
25 µm
50 µm
100 µm
150 µm
200 µm
300 µm
Dispersion nm/mm
Dispersion nm/pixel
Grating rotation (°)
Grating
150 l
295 l
300 l
600 l
1180 l
1200 l
1800 l
2400 l
3600 l
Custom
Coatings
150 l
300 l
600 l
1200 l
1800 l
2400 l
3600 l
Option
Coatings
Center(cm-1)
Slit width µm:
Range (nm)
Range (cm-1)
Grooves/mm
Spacing/nm
Short Wavelength (nm)
Long Wavelength (nm)
Grating size/mm
Next resolv. wavelength
Next resolved wavenumber
Low Raman shift (cm-1)
High Raman shift (cm-1)
nm to eV
CCD Resolution (nm)
Resolution (cm-1)
For Richardson Gratings not listed go to https://www.newport.com/c/diffraction-gratings
Spectral Coverage:
approximate, use for reference purpose only.
Use 68 x 84mm Grating:
When operating at high wavelengths (high grating angles).
The 68 x 84 mm grating preserves the light collecting power (aperture Ratio)
Center Wavelength to High:
Refers to the mechanical rotation capability (not the operating or optimum range) of a grating drive. Lower the central wavelength or select a grating that allows operation over your required wavelength region.
CCD Resolution (FWHM):
Refers to the resolution available with the selected detector or image intensifier.