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Dispersion Prisms

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30° - 60° - 90° Littrow Dispersion Prisms 30° - 60° - 90° Littrow Dispersion Prisms
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Ray Deviation of 60° If Coated
  • Ideal as a Dispersion Prism if Uncoated
  • Right Handed Image
Equilateral Prisms Equilateral Prisms
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Ideal for Light Dispersion
  • Sizes Ranging from 5 - 50mm
  • Available Uncoated or Anti-Reflection Coated
  • Additional Equilateral Prism Options Available
Ultrafast Dispersion-Compensating Prisms Ultrafast Dispersion-Compensating Prisms
  • Polished at Brewster’s Angle to Minimize Reflection Loss
  • Use Intracavity for Dispersion Compensation
  • Use Extracavity to Manipulate Pulse Characteristics
ISP Optics Infrared (IR) Equilateral Prisms ISP Optics Infrared (IR) Equilateral Prisms
  • CaF2, Ge, and ZnSe Substrates
  • Ideal for Wavelength Separation
  • Designed for Use with Collimated Sources
  • Additional Infrared Optics Available
  • Due to material supply chain disruptions with germanium, there may be increased lead times and price changes on our germanium products. For more information, please contact our customer service team.
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 Application Note
Prism Tunnel Diagrams
Prism Tunnel Diagrams





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Dispersion Prisms are used in applications that require separating the incident light into its component wavelengths. For example, when white light enters a Dispersion Prism, it is separated into its three components: red, green, and blue. Dispersion Prisms are ideal for spectroscopy or laser tuning.

Edmund Optics offers the world’s largest inventory of off-the-shelf optical components, including Dispersion Prisms. Edmund Optics’ Dispersion Prisms are available uncoated, or with reflection or anti-reflection coatings. Dispersion Prisms are also available in multiple substrates that are ideal for Infrared (IR) applications. Infrared (IR) substrates include Calcium Fluoride (CaF2), Germanium (Ge), or Zinc Selenide (ZnSe). Calcium Fluoride (CaF2) is a low index material featuring excellent transmission from 0.19 - 7μm, ideal for use in the Ultraviolet (UV) through Infrared (IR). Germanium (Ge) is is a high index material, ideal for maximizing optical paths from 3 - 12μm. Zinc Selenide (ZnSe) is commonly used from 1 - 16μm, ideal for use with CO2 lasers.

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