Ultrafast Harmonic Beamsplitter, 25.4 mm, 400 nm Refl., 800 nm Trans.

Technical Specs

  • Diameter
    25.4 mm
  • Material
    Fused Silica
  • Reflectance Band
    400 nm
  • Coating Code
    UF.HB1
  • Reflectance
    Rs ≥99.8%, Rp ≥99.5%,
  • Transmittance Band
    800 nm
  • Antireflection Coating
    V-coat AR, R< 0.25%
  • Transmittance
    Ts ≥95%, Tp ≥95%
  • Angle of Incidence
    45°
  • Orientation
    Beam should enter surface marked with an arrow
  • Wavefront Distortion
    ≤λ/4 at 632.8 nm over clear aperture
  • Damage Threshold
    5 MW/cm2 CW, 5.0 J/cm2 @ 1064 nm, 0.1-100 ns, 10 Hz, typical
  • Surface Flatness
    ≤λ/10 at 632.8 nm over clear aperture
  • Surface Quality
    10-5 scratch-dig
  • 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 85% of diameter
  • Diameter Tolerance
    +0/-0.25 mm
  • Wedge
    ≤3 arc min
  • Thickness
    3.0 mm  
  • Thickness Tolerance
    ±0.5 mm