Mid-IR Polariser, Broadband, ZnSe, 1.5-14µm

Manufacturer's part number :


Manufacturer Altechna


Description :

ZnSe is a broadband 1.5-14µm Mid-IR polarizers are produced by mechanically ruled. These polarisers do not suffer from beam displacement, are not affected by diverging or converging beam, have wide acceptance angle without degradation of performance.

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  • Quote and availability


  • Spectral range: 1.5µm to 14µm
  • Mechanically ruled type
  • Material: CaF2
  • Laser Damage Threshold: > 120 W/cm² CW or > 2 J/cm² 100 ns pulsed for mechanically ruled polarisers
  • Clear aperture: 18mm or 25mm
  • Mount Diameter: 25 mm or 41mm
  • Transmission efficiency: (k1>70%; k2<1,4%)@3um
  • Extinction ratio (k1/2k2): >25:1@3um
  • Contrast ratio (k1/k2): >50:1@3um
  • Benefits

  • Wide acceptance angle
  • Polyethylene polarizers for 20-1000 microns are also available!
  • Long life time