eo_logo
 
Product added to cart

Richardson Gratings™ Echelle Reflective Diffraction Gratings

See More by Richardson Gratings™
×
  • Highest Resolving Power and Dispersion
  • Low Groove Density for Use in Higher Orders
  • Groove Spacing Tolerance <0.05%
  • Custom Sizes Available

Common Specifications

Dimensions (mm):
25.0 x 50.0 ±0.1
Clear Aperture (%):
>90
Construction:
Ruled Grating
Length (mm):
50.00
Thickness (mm):
6.00 ±0.5
Width (mm):
25.00
Centering of Ruled Area on Substrate (mm):
±1
Alignment of Grooves to Edge (°):
±0.15
Groove Spacing Tolerance (%):
<0.05
Blaze Wavelength (nm):
All
Coating:
Aluminium
Substrate:
Float Glass
Reflected Wavefront, RMS:
λ/4

Products

 Groove Density (grooves/mm)   Blaze Wavelength (nm)   Dimensions (mm)   Master Reference   Spectral Order (m)   Compare   Stock Number   Price  Buy
31.6 All 25.0 x 50.0 411E 37
79 All 25.0 x 50.0 401E 1
79 All 25.0 x 50.0 402E 98
316 All 25.0 x 50.0 451E 2

Product Details

Richardson Gratings™ Echelle Reflective Diffraction Gratings feature superior resolving power and dispersion compared to other reflective diffraction gratings. These gratings are characterized by coarse groove spacings, relatively low groove densities and high blaze angles. They are suitable for use from near-UV wavelengths to the infrared (~20μm). Richardson Gratings™ Echelle Reflective Diffraction Gratings are ideal for applications such as compact high resolution spectrometers with high angular dispersion and throughput. Custom sizes are available on request.

Note: The surface of these gratings is very sensitive and should never be touched when handling the optic. If cleaning is required to remove dust particles, non-contact cleaning using clean compressed air is recommended.