CaF2 window

Calcium Fluoride (CaF₂) window is a premium optical crystal component with excellent deep UV to mid-infrared transmission. It features low dispersion, high homogeneity, and outstanding chemical stability.

CaF₂ provides high transmittance across 0.15 μm – 9 μm, making it ideal for UV optics, spectroscopy, laser systems and imaging instruments. With low refractive index and minimal thermal expansion, it performs stably under wide temperature changes. Custom diameter, thickness and anti-reflection coatings are available for industrial, laboratory and laser applications.