Calcium Fluoride (CaF₂)

Calcium Fluoride (CaF₂) crystals are widely used in optical applications due to their high transmission across the UV, visible, and infrared spectra (140 nm to 8 µm). With a cubic crystal structure, CaF₂ provides excellent mechanical strength, optical clarity, and thermal stability. Its high melting point (~1,400°C) and chemical resistance make it ideal for use in harsh environments. Commonly employed in optical windows, lenses, prisms, and high-power lasers, CaF₂ plays a crucial role in UV spectroscopy, infrared imaging, and laser systems. Additionally, its low dispersion and resistance to thermal shock make it essential for aerospace, military, and scientific applications, particularly in high-temperature and radiation-sensitive environments.

Explore the types we offer, tailored for specific industries and technologies:

Type / Grade

Applications

Related Industries

Key Features

Optical Grade

UV/VIS/NIR windows, lenses, prisms

Optics, Photonics, Laser Industries

– Extremely low absorption
– High transmission- Low refractive index 
– Radiation resistant

 

IR Grade 

 

Infrared spectroscopy, thermal imaging systems

 

Defense, Aerospace, Industrial IR

 

– Transparent up to ~10 µm
– Excellent IR transmittance
– Low hygroscopicity

 

Laser Grade 

Excimer laser systems

Semiconductor Lithography

– Minimal fluorescence
– High laser damage threshold
– High purity 

 

Doped Grade

Scintillation detectors, upconversion phosphors

  – High-Energy Physics

– Tunable emission properties
– High light yield
– Good timing resolution

 

Polycrystalline 

IR windows, domes, lenses for thermal imaging

Aerospace, Defense, Industrial IR Optic

– Isotropic structure 
– Higher mechanical strength 
– Good IR transmittance (especially 3–8 µm)

 ✅ Available Size: Crystal Blanks of customized size

✅ Bulk and prototype orders accepted

✅ Global delivery with quality guarantee