Broadband Dielectric Beamsplitter, 25.4 mm, N-BK7, 480-700 nm

Technical Specs

  • Diameter
    25.4 mm
  • Antireflection Coating
    480-700 nm
  • Material
    Grade A N-BK7
  • Surface Quality
    15-5 scratch-dig
  • Angle of Incidence
    45°
  • Coating Code
    BS.1
  • Surface Flatness
    λ/10 at 632.8 nm over the clear aperture
  • Durability
    MIL-C-675C, moderate abrasion million cycles
  • Chamfers
    0.25-0.76 mm face width
  • Chamfers Angle Tolerance
    45° ±15°
  • Cleaning
  • Clear Aperture
    > central 80% of diameter
  • Damage Threshold
    500 W/cm2 CW, 0.5 J/cm2 with 10 nsec pulses, typical
  • Diameter Tolerance
    +0/-0.13 mm
  • Wedge
    30 ±15 arc min
  • Efficiency
    Ravg < 0.75% @ 400-700 nm
  • Thickness
    6.1 mm  
  • Thickness Tolerance
    ±0.38 mm