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Flat Field and Imaging Gratings - Type IV
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Optical Diffraction Gratings
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HORIBA

Manufacturer of Optical Spectrometers, Camera Systems for OEM Industrial Applications

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Manufacturer
HORIBA
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SKU
137216
Product Name
Flat Field and Imaging Gratings - Type IV
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Product Details


OEM gratings design and production capabilities

HORIBA Scientific produces a wide range of holographic master gratings from which high precision replicas are manufactured.
Type IV aberration-corrected flat field and imaging gratings are designed to focus a spectrum onto a plane surface, making them ideal for use with linear or 2-D array detectors.
These gratings are produced with grooves that are neither equis-paced nor parallel, and are computer optimized to form near-perfect images of the entrance slit on the detector plane.


ㆍ Replica gratings from holographic aberration corrected master gratings
ㆍ Holographic Master can be blazed by Ion-beam etching method for higher efficiency
ㆍ Ideal for robust, compact and low stray light spectrometers
ㆍ Several references available (not all are listed in the catalogue)
ㆍ Large range of dispersion available (from few nm/ mm to above 100nm/mm)
ㆍ Multiple spectral range from UV to IR
ㆍ Coating: Al or gold.

Fig. 1: This illustration shows a “super corrected grating” imaging two independent sources onto two independent linear arrays. Spectrum 1 is a “sample spectrum” from slit 1 and spectrum 2 a reference spectrum from slit 2. These “slits” could be fiber optic inputs

 

 

Fig. 2: Typical implementation into a spectrograph

 

Product Management and Quality

  • ISO 9001 and ISO 14001 certified
  • Unique traceability with laser marking
  • State-of-the-art metrology 
  • ITAR free products
  • Clean room storage of master gratings
  • RoHS / REACH compliant products
 

Customer Oriented and Confidentiality

  • Full confidentiality with mutual NDA
  • Blanket orders for large annual quantities
  • Long term relationship with co-designing
  • Three production facilities

 


ㆍ Spectral ranges: from 170 to 4180 nm
ㆍ Average dispersion (nm/mm) : from 1 to 106 nm/mm
ㆍ Diffraction efficiency optimized for UV, or Vis, or NIR
ㆍ Radius of curvature : from 58 to 330 mm
ㆍ Dimensions from 25 x 25 mm
ㆍ For customers in need of larger dimensions, HJY can record a custom-made holographic grating master specifically for replication.

Fig. 3: Typical efficiency curve* for 533 02, 285 l/mm, 190-800 nm

 

*This efficiency curve is absolute theoretical efficiency, calculated using rigorous electromagnetic theory, taking into account the true groove profiles of manufactured gratings measured with an atomic force microscope (AFM).

HORIBA
Manufacturer of Optical Spectrometers, Camera Systems for OEM Industrial Applications
HORIBA Scientific is a market leader in CCD spectrometers, diffraction gratings, and scientific cameras. Our OEM division offers spectroscopy and imaging solutions that will exceed your next-generation requirements and consistently outperform the competition. That includes: ㆍ Better Stray Light performance thanks to the integration of our Aberration Corrected Holographic Concave Gratingsㆍ Superior SNR thanks to higher full well combined with lower read noise on our CCD and CMOS optimized electronics Our technology portfolio spans VUV to near-infrared wavelengths, and our global team of highly experienced project managers and engineers work closely with you to understand your product requirements and business needs. Together we will deliver innovative and cost effective volume spectroscopy and imaging solutions for your most challenging industrial applications.  
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