Optical Windows & Coated Substrates

Optical windows separate environments while letting light pass, and substrates carry coatings and thin films. This sub-category supplies both in crystalline and glass materials. Barium fluoride windows are listed in many sizes, including 15 x 2 mm, 22 x 0.5 mm, 32 x 3 mm, 35 x 5 mm, 42 x 2 mm, 44.45 x 3.5 mm and 57 x 8 mm, along with a 40 mm diameter BaF2 crystal window and other fluoride and oxide windows.

Barium fluoride transmits from deep UV to around 12 µm in the infrared, and it is also a fast scintillator for radiation detection. It is softer and more sensitive to thermal shock than calcium fluoride, so handle and mount it carefully. When choosing a window, consider wavelength range, thickness for pressure loads, surface flatness and any anti-reflection coating.

• Fluoride windows for UV and infrared spectroscopy
• Oxide and glass windows for visible and laser use
• Coated substrates for thin-film and device work

Windows ship individually wrapped in protective cases. Each order includes material and dimension details, and custom sizes are available.