Plane Gratings

High efficiency and minimum stray light

Plane Gratings

Plane Gratings Can be Holographic Generated or Mechanically Ruled

Carl Zeiss offers gratings optimized for various applications in the spectral range from 150 nm to 50 µm. The gratings can either be mechanically ruled or manufactured by holographic exposure for the following configurations:

  • echelette/blaze
  • sinus
  • laminar/binary



Plane, mechanically ruled gratings are designed for the first diffraction order in autocollimation. The energy distribution is defined by line spacing, profile depth and blaze angle. Using gratings in autocollimation offers the benefit of maximum diffraction efficiency for certain wavelengths (blaze wavelength). Special gratings optimized for various Laser applications in the spectral range from 0.2 µm to 12 µm are also available.

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Plane Gratings are Flat Gratings Which Can be Used In Different Fields of Application

Plane gratings are flat gratings that can be used in the following fields of application:
Spectroscopy (e.g. emission and molecule spectroscopy)

  • Monochromators
  • Polychromators


Laser technology

  • Laser stabilization/tuning
  • Laser pulse stretching and compression


Other optical and non-optical applications

  • Beam splitting
  • Referencing of mechanical dimensions


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High Efficiency Plane gratings used in Laser system applications

Gratings with very high diffraction efficiencies, especially for polarized light are extremely suitable for laser applications such as:

  • Wavelength tuning and stabilization
  • Beam splitting
  • Laser pulse stretching and compression
  • Polarization

We provide optimized gratings for various applications in the spectral range from 0.2 µm to 12 µm. The absolute efficiency provided by a grating at the wavelength of the laser used is of special significance. To obtain a high level of efficiency, deliberate use is made of the dependence of the diffraction efficiency on the direction of polarization.

  • groove frequency 
  • groove profile 
  • surface coating 
  • blank material 
  • diffraction efficiency 
  • wavefront accuracy 
  • resolution
  • imaging properties 
  • radiation resistance

The absolute efficiency provided by a grating at the wavelength of the laser used is of special significance. To obtain a high level of efficiency, deliberate use is made of the dependence of the diffraction efficiency on the direction of polarization.
For the efficiency of laser gratings, it must be noted that only medium or low values are required for some applications.

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