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2400 Grooves/mm, 12.5 x 25mm, VIS Holographic Grating

Reflective Holographic Gratings

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Stock #43-224 3-4 days
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€134,00
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Absolute Peak Efficiency, Typical (%):
80
Peak Efficiency Avg, Typical (%):
>61

Product Details

Type:
Reflective Diffraction Grating

Physical & Mechanical Properties

Dimensions (mm):
12.5 x 25.0 ±0.5
Construction:
Holographic Grating
Length (mm):
25.00
Thickness (mm):
9.50 ±0.5
Width (mm):
12.50
Alignment of Grooves to Edge (°):
±0.5

Optical Properties

Groove Density (grooves/mm):
2400
Wavelength Range (nm):
400 - 700
Coating:
Bare Aluminum
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Float Glass
Wavelength:
VIS

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
REACH 241:

Product Family Description

  • Groove Density up to 3600 Grooves per mm
  • Bare Aluminum Coating
  • Sinusoidal Grating Profile
  • Available Wavelength Range of 250 - 1500nm

Holographic gratings are formed by an interference fringe field of two laser beams whose standing wave pattern is exposed to a polished substrate coated with photoresist. Processing of the exposed medium results in a pattern of straight lines with a sinusoidal cross section.

Holographic gratings produce less stray light than ruled gratings. They can also be produced with up to 3600 grooves per millimeter for greater theoretical resolving power. Due to their sinusoidal cross section, holographic gratings cannot be easily blazed and their efficiency is usually considerably less than a comparable ruled grating. There are, however, special exceptions which should be noted. When groove spacing to wavelength ratio is near one, a holographic grating has virtually the same efficiency as the ruled version. Also, a holographic grating with 1800 grooves per millimeter has the same efficiency at 500nm as a blazed ruled grating. Holographic master gratings are replicated by a process identical to that used for ruled gratings.

Handling Gratings: Gratings require special handling, making them prone to fingerprints and aerosols. Gratings should only be handled by the edges. Before attempting to clean a grating, please contact us.

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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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