Wire Grid Polarizers

Wire Grid Polarizers

Ruled and Holographic Wire Grid Polarizers

Optometrics manufactures ruled wire grid polarizers on CaF2 (Calcium Fluoride) and ZnSe (Zinc Selenide), together covering a wavelength range from 2.5 to 20 microns and holographic on CaF2 (Calcium Fluoride), ZnSe (Zinc Selenide), BaF2 (Barium Fluoride), KRS-5 and Ge (Germanium), covering a wavelength region from 2.5 to 30 microns.

A polarizer is commonly used:

  • to polarize radiation from an unpolarized source
  • to attenuate radiation from a polarized source
  • in reflectance accessories for dispersive and FTIR spectrophotometers
  • in the study of metal surfaces and crystal structures at grazing incidence

Two polarizers can be used:

  • in series to achieve extinction ratios greater than 90,000:1
  • in series to polarize and attenuate a source
  • in conjunction with a beamsplitter to create a polarizing beamsplitter simply by placing one polarizer in each beam tuned to opposite polarizations

Knowledge Base

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