UV Beamsplitter, 25.0 x 25.0 mm, 2.00 mm Thickness, 30R/70T ratio

Technical Specs

  • Wavelength Range
    250-450 nm
  • Size
    25.0 x 25.0 mm
  • Material
    UV Grade Fused Silica
  • Coating Second Surface
    AR (Ravg <1%, Rabs <2%)
  • Angle of Incidence
    45°±3°
  • Reflection
    Rabs = 30 ±5% @ 350 nm, Ravg = 30 ±10% @ 250-450 nm
  • Transmission
    Tabs = 70 ±5% @ 350 nm, Tavg = 70 ±10% @ 250-450 nm
  • Surface Flatness
    ≤1 λ at 632.8 nm over the clear aperture
  • Surface Quality
    60-40 scratch-dig
  • Thickness
    2.0 mm  
  • Thickness Tolerance
    +0.0/-0.2 mm
  • Parallelism
    < 5 arc minutes
  • Clear Aperture
    > central 85% of diameter
  • Chamfers Angle Tolerance
    45° ±15°
  • Cleaning