Calcium fluoride

Calcium fluoride stands out as an optical material renowned for its versatility and exceptional properties. As an optical window, it has remarkable transparency across a broad spectral range, particularly excelling in ultraviolet (UV) and infrared (IR) wavelengths. This exceptional transparency ensures efficient transmission of light, making it indispensable for a myriad of scientific, industrial, and imaging applications.

In spectroscopic instruments, CaF₂ windows enable the analysis of samples across UV, visible, and IR wavelengths with unparalleled precision. Their exceptional capacity to uphold high transmission levels and showcase minimal absorption empowers researchers to explore their samples comprehensively, thus unveiling invaluable insights

Moreover, the inherent chemical resistance of CaF₂ further enhances its appeal in diverse settings, ensuring longevity and reliability even in challenging environments. Whether in laboratory research, industrial processes, or cutting-edge imaging technologies, the unique properties of CaF₂ make it the optimal choice for demanding optical window applications.

Transmission Range: 0.13 to 10 μm

Refractive Index: 1.39908 at 5 μm

Reflection Loss: 5.4% at 5 μm (2 surfaces)

Absorption Coefficient: Varies with wavelength

Density: 3.18 g/cc

Melting Point: 1360°C

Thermal Conductivity: 9.71 W m-1 K-1

Thermal Expansion: 18.85 x 10-6 K-1

Hardness Knoop: 158.3 (100) with 500g indenter

Specific Heat Capacity: 854 J Kg-1 K-1

Dielectric Constant: 6.76 at 1 MHz

Young’s Modulus (E): 75.8 GPa

Shear Modulus (G): 33.77 GPa

Bulk Modulus (K): 82.71 GPa

Apparent Elastic Limit: 36.54 MPa

Poisson Ratio: 0.26

Solubility: 0.0017g/100g water at 20°C

Molecular Weight: 78.08

Class/Structure: Cubic Fm3m (#225), Fluorite Structure

Please note that these values are typical and may vary based on the grade and manufacturing process of the material