CaF2 Rectangles

  • CaF2 25x12x2mm Rectangle920-5026
  • CaF2 30x15x4mm Rectangle920-5226
  • CaF2 30x15x4mm Drilled Rectangle920-5227
  • CaF2 38x19x4mm Rectangle920-5326
  • CaF2 38x19x4mm Drilled Rectangle920-5328


Calcium fluoride (CaF2) is an excellent material choice for many NIR applications. It has near zero solubility in water, no hydroxyl absorption and is relatively low cost. CaF2 is limited in the mid-IR spectral range to about 900 cm-1 depending upon thickness of the windows.

Product Information [pdf]