Barium Fluoride is used for optical windows, lenses and prisms. The transmission range is 0.2 µm - 11 µm. Barium fluoride is grown by vacuum Stockbarger technique. Polishing is quicker than calcium fluoride using diamond pastes but is less easy to obtain free of sleeks. Barium fluoride is less resistant to attack by water than Calcium Fluoride. Pronounced water attack occurs at 500 °C, but the material can be used to 800 °C in a dry environment. The material is relatively hard but is highly sensitive to thermal shock.

Maximum available size: 200 mm
Dia x 50 mm Thk

The following products from BaF₂ are available:

  WINDOWS

  BLANKS

  LENSES
  (spherical pl-cvx, spherical bi-cvx)