Thorlabs offers several different IR window options, which provide a high damage threshold and are fabricated from MgF₂, Sapphire, CaF₂, BaF₂, Silicon, Germanium, or Zinc Selenide. Windows are available with transmission out to 16 μm and with AR coatings out to 12 μm.

Magnesium Fluoride Windows, 0.2 - 6 µm

Sapphire Windows,
0.15 - 5 µm

Calcium Fluoride Windows,
0.18 - 8 µm

Silicon Windows, 1.2-8 µm

Barium Fluoride Windows,
0.2 - 11 µm

Germanium Windows,
2-16 µm

Zinc Selenide Windows,
0.6 - 16 µm


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