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Echelle Reflective Gratings

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Richardson Gratings™ Echelle Reflective Diffraction Gratings Richardson Gratings™ Echelle Reflective Diffraction Gratings
  • Highest Resolving Power and Dispersion
  • Low Groove Density for Use in Higher Orders
  • Groove Spacing Tolerance <0.05%
  • Custom Sizes Available


  What are diffraction gratings?
A diffraction grating separates polychromatic (or multiple wavelengths) light into its component wavelengths by diffraction. Diffraction is a process in which light incident to a surface with dimensions similar in size to its wavelength is dispersed at certain angles. These diffraction angles are dependent upon the wavelength of light. Thus, polychromatic light will have a separate diffraction angle for each individual wavelength. This difference in diffraction angle is what separates light into its component wavelengths.
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