Flat field and imaging gratings - Type IV

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.

<< Back to Gratings for Industrial OEM

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

HORIBA Scientific also provides a wide range of products using these gratings: Spectrometers and Hyperspectral Cameras.


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
  • Spectral ranges: from 170 to 4180 nm
  • Average dispersion (nm/mm) : from 1 to 106 nm/mm
  • Diffraction efficiency optimized for UV, or Vis, or NIR
  • Radius of curvature : from 58 to 330 mm
  • Dimensions from 25 x 25 mm
    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).

Požadavek na informaci

Máte nějaké dotazy nebo požadavky? Pomocí tohoto formuláře kontaktujte naše specialisty.

* Tato pole jsou povinná.

Related products

Blazed holographic plane gratings
Blazed holographic plane gratings

OEM gratings design and production capabilities

Gratings - Laser Pulse Compression Gratings
Gratings - Laser Pulse Compression Gratings

Pulse compression gratings using holographic techniques

Gratings for Space-Flight
Gratings for Space-Flight

Space qualified and TRL9

Holographic concave gratings - Type I
Holographic concave gratings - Type I

OEM gratings design and production capabilities

Holographic plane gratings
Holographic plane gratings

OEM gratings design and production capabilities

Monochromator gratings - Type IV
Monochromator gratings - Type IV

OEM gratings design and production capabilities

Ruled plane gratings
Ruled plane gratings

OEM gratings design and production capabilities

Corporate