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Richardson Gratings™ Echelle Reflective Diffraction Gratings

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  • Highest Resolving Power and Dispersion
  • Low Groove Density for Use in Higher Orders
  • Groove Spacing Tolerance <0.05%
  • Custom Sizes Available

Common Specifications

Centering of Ruled Area on Substrate (mm):
±1
Groove Spacing Tolerance (%):
<0.05
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
Alignment of Grooves to Edge (°):
±0.15
Blaze Wavelength (nm):
All
Coating:
Aluminium
Substrate:
Float Glass
Reflected Wavefront, RMS:
λ/4
 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 #15-741 C$406.00   Request Quote  
  • In Stock
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79 All 25.0 x 50.0 401E 1 #15-742 C$406.00   Request Quote  
  • In Stock
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79 All 25.0 x 50.0 402E 98 #15-743 C$406.00   Request Quote  
  • In Stock
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316 All 25.0 x 50.0 451E 2 #15-744 C$406.00   Request Quote  
  • In Stock
    ×
 

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.

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Multiphoton Microscopy

Multiphoton microscopy is ideal for capturing high-resolution 3D images with reduced photobleaching and phototoxicity compared to confocal microscopy.

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All About Diffraction Gratings

Learn about how diffraction gratings separate incident light into separate beam paths, different types of gratings, and how to choose the best grating for you.

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Richardson Gratings™ Unboxing

Learn about high-precision diffraction gratings from Richardson Gratings available in-stock and ready for immediate shipping from Edmund Optics.

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What is the difference between holographic and ruled diffraction gratings?

How do the efficiency curves relate to the actual amount of light I will see at any given wavelength?

What is the difference between Rowland circle and polychromator mounts for gratings?

Understanding Rowland circle and polychromator mounts for diffraction gratings is important for selecting the proper concave grating for your application.

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What are diffraction gratings?

Diffraction gratings separate polychromatic light into component wavelengths.

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What is the grating equation?

What is the difference between reflective and transmission gratings?

What is the blaze angle and blaze wavelength of a grating and how are they related?

How do I handle and clean my gratings?

I would like to select a narrow band of light with a grating, lens and pinhole setup. Since the grating’s resolving power is decided by the number of grooves illuminated by light, can it resolve anymore?

Absolute Efficiency

Blaze Angle

Blaze Wavelength

Diffraction

Diffraction Grating

Grating Equation

Groove Density

Holographic Grating

Nth Order

Relative Efficiency

Ruled Grating

Removing Protective Plastic Coating

A protective plastic coating protects a variety of our flat optics, such as optical windows, optical mirrors, and beamsplitters, from scratches during shipping.

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