Elliptical Mirror, Gold, N-BK7, 25.4 mm x 35.9 mm, λ/10, 650-20,000 nm

Technical Specs

  • Wavelength Region
    Broadband
  • Wavelength Range
    650-20000 nm
  • Mirror Shape
    Elliptical
  • Mirror Size
    25.4 x 35.9 mm
  • Thickness
    6.0 mm  
  • Material
    N-BK7
  • Coating Type
    Protected Gold
  • Coating Code
    ER.4
  • Surface Quality
    40-20 scratch-dig
  • Surface Flatness
    λ/10 at 632.8 nm
  • Angle of Incidence
    0-45°
  • Clear Aperture
    ≥central 80% of diameter
  • Back Surface
    Ground
  • Reflectivity
    Ravg>96%, Rmin>92% @ 650-1700 nmRavg>98%, Rmin>96% @ 1.7-20 µm
  • Damage Threshold
    0.5 J/cm² with 10 ns pulses at 1064 nm, 20Hz
  • Thickness Tolerance
    ±0.2 mm
  • Chamfers
    0.38–1.14 mm face width
  • Chamfers Angle Tolerance
    45° ±15°
  • Cleaning