Calcium Fluoride is extremely transparent over a wide spectrum from deep UV(135nm) to far IR(9.4um), which makes it ideal for windows in very short wavelength excimer lasers. The crystal has very low refraction coatings. It is slightly soluble in water.
• Diameter Tolerance: +0.0/- 0.1
• Wedge Angle: 3'
• flatness: λ/2 at 633nm
• Surface Quality: 80-50 scratch-dig
• Uncoated