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    Wavelength Range (nm)

    Calcium Fluoride Optics

    Calcium Fluoride (CaF2) Optical Components are used as spectroscopic windows or lenses, or in cryogenically cooled thermal imaging systems. Calcium Fluoride (CaF2) Optics are ideal for a broad range of Ultraviolet (UV), Visible, or Infrared (IR) applications. Calcium Fluoride’s combination of low absorption with a high damage threshold makes it an excellent material for use with Excimer lasers. Calcium Fluoride (CaF2) features a low refractive index, removing the need for an anti-reflection coating.

    Edmund Optics offers a wide selection of Calcium Fluoride (CaF2) Optical Components, such as Optical Windows, Optical Lenses, Prisms, or Beamsplitters. Calcium Fluoride (CaF2) Optical Windows are ideal for use as spectroscopic windows. Calcium Fluoride (CaF2) Optical Lenses are used in many spectroscopy applications. Calcium Fluoride (CaF2) Prisms are used for many broadband applications from the Ultraviolet (UV) to the Infrared (IR). Calcium Fluoride (CaF2) Beamsplitters are designed to be used at a 45° angle of incidence for broadband Infrared (IR) applications.

    Calcium Fluoride (CaF2) Windows
    • Low Absorption, High Transmission UV Grade Calcium Fluoride
    • Ideal for Applications Ranging from 200nm - 7μm
    • Low Index of Refraction

    Calcium Fluoride Double-Convex (DCX) Lenses
    • Greater than 90% Transmission from 350nm-7μm
    • Low Index of Refraction

    Calcium Fluoride Plano-Convex (PCX) Lenses
    • Greater than 90% Transmission from 200nm - 7μm
    • Low Index of Refraction
    • Vacuum Grade UV Substrate

    Infrared (IR) Plate Beamsplitters
    • Broadband 50% Reflection/50% Transmission
    • CaF2 Option for 2 - 8μm Range
    • ZnSe Option for 7 - 14μm Range

    Infrared (IR) Right Angle Prisms
    • CaF2, Ge, and ZnSe Substrates
    • Ray Deviation of 90°
    • Ideal for Use with Collimated Sources
    • Additional Infrared Optics Available

    Infrared (IR) Windows Kit
    • 7 Different 25mm Diameter IR Material Windows
    • Ideal for Laboratories
    • Fully Assembled in Foam Lined Wooden Boxes

    Infrared (IR) Wire Grid Polarizers
    • Designed for Wavelengths Ranging from 2 - 30μm
    • Holographic Polarizers Available in Many Substrates
    • Ruled Polarizers Ideal for High-Power Lasers
    • 360° Rotation Using Metric Polarizer Mounts


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