Quarter Wave Plate, Achromatic, Quartz-MgF2, 25.4 mm Diameter, 700-1000 nm

Technical Specs

  • Diameter
    25.4 mm
  • Wavelength Range
    700-1000 nm
  • Retardation
    λ/4
  • Retardation Accuracy
    From ±λ/50 to ±λ/100
  • Material
    Crystal Quartz and MgF2
  • Construction
    Two plates, air spaced
  • Housing
    Black anodized aluminum
  • Clear Aperture
    18 mm
  • Antireflection Coating
    Broadband, multilayer coating
  • Average Reflectance
    <0.5%
  • Damage Threshold
    5 J/cm2 with 10 nsec pulses at 1064 nm, typical
  • Surface Quality
    40-20 scratch-dig
  • Surface Flatness
    λ/2
  • Transmitted Beam Deviation
    ≤1 arc min
  • Wavefront Distortion
    ≤λ/8 at 632.8 nm over the clear aperture
  • Diameter Tolerance
    ±0.13 mm
  • Thickness
    9.4 mm
  • Operating Temperature Range
    -20 to 50°C