Raman Grade Calcium Fluoride

Raman grade calcium fluoride (CaF₂) is a high-purity optical crystal specially designed for high-precision spectroscopy analysis and laser applications. Its key features include minimal fluorescence effect, which significantly reduces background noise and ensures clear signals; it has an ultra-wide transmission range, from deep ultraviolet to mid-infrared (approximately 130 nm – 10 μm), particularly suitable for optical systems with laser wavelengths ranging from 130 nm to 10 μm. In Raman spectroscopy applications, this material presents only a single Raman peak at 321 cm⁻¹, without any other interference from additional peaks, greatly enhancing the accuracy and reliability of the test results. Additionally, CaF₂ crystals are durable and not easily soluble, have high chemical stability, and are suitable for harsh environments. 

In terms of application, Raman-grade CaF₂ is widely used in infrared optical components, deep infrared spectroscopy analysis, ultraviolet laser transmission windows, and epitaxial substrates, etc. It has become an indispensable key material in high-performance optical systems ranging from ultraviolet to mid-infrared wavelengths.