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Infrared Plate Beamsplitters

Infrared Plate Beamsplitters

Infrared Plate Beamsplitters

  • 50% Reflection 50% Transmission Beamsplitter Coating
  • CaF2 for 0.6 – 8μm Range
  • ZnSe for 2 – 20μm Range

Infrared Plate Beamsplitters are critical components in FTIR spectrometers, Interferometers, and other IR-enabled devices. Both the Calcium Fluoride (CaF2) design, with an operating wavelength range of 0.6 - 8μm, and the Zinc Selenide (ZnSe) design, with a 2 – 20μm wavelength range, are available in multiple sizes. Infrared Plate Beamsplitters are designed for a 15 – 45° angle of incidence, providing easy integration into any instrument’s geometry.

Common Specifications

Surface Flatness:
3/4λ @ 632.8nm
Reflection/Transmission Ratio (R/T):
Parallelism (arcmin):
Angle of Incidence (°):

Export Specifications

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