IR Beamsplitter, Zinc Selenide, 25.4 mm, 50R/50T Ratio

Technical Specs

  • Wavelength Range
    7-14 µm
  • Diameter
    25.4 mm
  • Material
    Zinc Selenide
  • Coating Second Surface
    AR coated
  • Angle of Incidence
    45° ±3°
  • Reflection
    50 ±10%
  • Transmission
    50 ±10%
  • Surface Flatness
    ≤2 λ at 632.8 nm over the clear aperture
  • Surface Quality
    60-40 scratch-dig
  • Diameter Tolerance
    +0.00/-0.13 mm
  • Thickness
    3.0 mm  
  • Thickness Tolerance
    ± 0.13 mm
  • Parallelism
    3 arc minutes
  • Clear Aperture
    > central 85% of diameter
  • Chamfers Angle Tolerance
    45° ±15°
  • Cleaning