Flat Field Concave Gratings

Spectrum Scientific’s flat field imaging concave gratings have grooves that are neither parallel nor equidistant. This type of concave grating is designed to minimize astigmatism and coma. This makes an aberration corrected concave grating ideal for use with planar array detectors such as photo diode arrays (PDA) or 2D array detectors such as charge coupled device (CCD) detectors. The imaging properties of the grating also means that multiple sources – such as fibre inputs – can be imaged simultaneously onto the entrance slit and each signal read out separately onto a 2D detector or a number of stacked array detectors.

Spectrum Scientific is one of the few companies in the world capable of manufacturing high quality blazed holographic concave gratings. Our proprietary technique allows us to optically blaze concave gratings without ion-etching which results in high peak efficiency and low stray light

Spectrum Scientific offers a range of standard gratings. If we do not have a grating that meets your specification, please contact our sales team to discuss your specific requirements.

 

Flat Field Concave Gratings

Flat Field Concave Gratings
Advanced Filter

Product Groove Density (g/mm)

Product Wavelength of Peak Efficiency (nm)

Product Wavelength Range (nm)

Product Coating

Product Dimensions (mm)

Product Lead Time

Product Apex Distance (inches)

Product Beam Deviation (arcsec)

Product Blaze Wavelength (nm)

Product Clear Aperture (mm)

Product Clear Aperture (%)

Product Deflection Angle (deg)

Product Deviation Angle (deg)

Product Dia. (mm)

Product Dispersion (nm/mm)

Product Effective Fl (mm)

Product F Nbr

Product Lα (mm)

Product Lβ (mm)

Product Parent Fl (mm)

Product Peak Efficiency (%)

Product Size (mm)

Product Spectrum Length (mm)

Product Substrate

Product Surface Accuracy

ComparePart NumberProduct DescriptionPriceGroove Density (g/mm)Dispersion (nm/mm)QuantityMore
Compare 164-1500-045 164 g/mm, 1500nm Flat Field Concave Grating $550.00 164 32
Part Number: 164-1500-045
Price: $550.00
Groove Density (g/mm)164
Dispersion (nm/mm)32
Blaze Wavelength (nm)1500
Wavelength Range (nm)100 - 1900
Spectrum Length (mm)25
Lα (mm)99
F Nbr2.6
Dia. (mm)45
Lead Time2-4 Wks
Hide Details
Compare 378-215-034 378 g/mm, 215nm Flat Field Concave Grating $550.00 378 24.1
Part Number: 378-215-034
Price: $550.00
Groove Density (g/mm)378
Dispersion (nm/mm)24.1
Blaze Wavelength (nm)215
Wavelength Range (nm)190-800
Spectrum Length (mm)25
Lα (mm)97.9
F Nbr3.8
Dia. (mm)34
Lead Time2-4 Wks
Hide Details
Compare 406-150-034 406 g/mm, 250nm Flat Field Concave Grating $550.00 406 24.4
Part Number: 406-150-034
Price: $550.00
Groove Density (g/mm)406
Dispersion (nm/mm)24.4
Blaze Wavelength (nm)300
Wavelength Range (nm)190-800
Spectrum Length (mm)24.9
Lα (mm)86.1
F Nbr2.2
Dia. (mm)34
Lead Time2-4 Wks
Hide Details
Compare 470-250-040A 470 g/mm, 250nm Flat Field Concave Grating $550.00 470 21.3
Part Number: 470-250-040A
Price: $550.00
Groove Density (g/mm)470
Dispersion (nm/mm)21.3
Blaze Wavelength (nm)250
Wavelength Range (nm)190-850
Spectrum Length (mm)27.88
Lα (mm)75.86
F Nbr2
Dia. (mm)40
Lead Time2-4 Wks
Hide Details
Compare 470-250-040B 470 g/mm, 250nm Flat Field Concave Grating $550.00 470 22.6
Part Number: 470-250-040B
Price: $550.00
Groove Density (g/mm)470
Dispersion (nm/mm)22.6
Blaze Wavelength (nm)250
Wavelength Range (nm)250-900
Spectrum Length (mm)27.88
Lα (mm)75.86
F Nbr2
Dia. (mm)40
Lead Time2-4 Wks
Hide Details
Compare 719-900-030 719 g/mm, 900nm Flat Field Concave Grating $550.00 719 16
Part Number: 719-900-030
Price: $550.00
Groove Density (g/mm)719
Dispersion (nm/mm)16
Blaze Wavelength (nm)900
Wavelength Range (nm)700-1100
Spectrum Length (mm)25
Lα (mm)100
F Nbr3.5
Dia. (mm)30
Lead Time2-4 Wks
Hide Details
Compare 954-300-030 954 g/mm, 300nm Flat Field Concave Grating $550.00 954 12.2
Part Number: 954-300-030
Price: $550.00
Groove Density (g/mm)954
Dispersion (nm/mm)12.2
Blaze Wavelength (nm)300
Wavelength Range (nm)340 - 800
Spectrum Length (mm)38
Lα (mm)55
F Nbr2
Dia. (mm)30
Lead Time2-4 Wks
Hide Details

Please complete our Request Information form or contact our sales team to discuss your specific requirements.