We supply high-quality Calcium Fluoride (CaF₂) crystals, widely used in optics, spectroscopy, and laser research due to their excellent transmission properties from deep UV to infrared. With low refractive index, minimal birefringence, and high resistance to damage, CaF₂ is a preferred material for demanding optical applications. Key Features: Optical Transmission: 150 nm – 8 µm (UV to IR) Low Refractive Index: ~1.43 (no need for anti-reflective coatings in many cases) High Laser Damage Threshold: Suitable for high-power laser systems Durability: Resistant to moisture, thermal shock, and radiation damage Available Forms: Windows, prisms, lenses, substrates, and custom shapes Applications: UV, visible, and IR spectroscopy Excimer and CO₂ laser optics High-power optical windows and lenses Space and aerospace optics Semiconductor lithography systems Ordering Information: MOQ: 10 pieces minimum per order Frequently Asked Questions — Calcium Fluoride (CaF₂) What is Calcium Fluoride (CaF₂) used for? Calcium Fluoride (CaF₂) is a widely used optical crystal with excellent transmission from deep ultraviolet to infrared. It is commonly used in spectroscopy, laser optics, semiconductor lithography, and aerospace optical systems. What wavelength range does CaF₂ transmit? CaF₂ provides high optical transmission from approximately 150 nm to 8 µm, covering deep UV, visible, and infrared regions. How does CaF₂ compare to MgF₂? Compared with MgF₂, CaF₂ offers a slightly higher refractive index and broader infrared transmission, while maintaining low birefringence and high laser damage resistance. CaF₂ is often preferred for high-power laser windows and broadband optical components. Is CaF₂ suitable for high-power laser applications? Yes. CaF₂ has a high laser damage threshold and excellent thermal and radiation resistance, making it suitable for excimer lasers, CO₂ lasers, and other high-power laser systems. Is CaF₂ resistant to moisture and harsh environments? CaF₂ shows good resistance to moisture, thermal shock, and radiation exposure. It is widely used in space, aerospace, and long-term industrial optical environments. What forms and components are available? CaF₂ crystals can be supplied as optical windows, lenses, prisms, substrates, and fully custom-shaped components according to your optical design requirements. Do you provide custom sizes and optical polishing? Yes. We offer custom dimensions, thicknesses, edge profiles, and optical-grade polishing to support research, prototyping, and OEM production. Are CaF₂ crystals suitable for research and production use? Absolutely. Our CaF₂ crystals are supplied to universities, research laboratories, and industrial customers for both R&D and volume manufacturing applications. .product-faq { margin-top: 48px; } .product-faq h2 { font-size: 1.4rem; margin-bottom: 22px; } .product-faq details { border: 1px solid #e5e5e5; border-radius: 8px; margin-bottom: 12px; padding: 14px 18px; background: #fafafa; } .product-faq details[open] { background: #ffffff; } .product-faq summary { font-weight: 600; cursor: pointer; list-style: none; position: relative; padding-right: 28px; } .product-faq summary::after { content: "+"; position: absolute; right: 0; top: 0; font-size: 18px; } .product-faq details[open] summary::after { content: "–"; } .product-faq summary::-webkit-details-marker { display: none; } .product-faq .faq-content { margin-top: 12px; color: #555; line-height: 1.65; }
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