CaF2 Optical Window
- Low Absorption, High Transmission UV Grade Calcium Fluoride
- Low Index of Refraction
- AR Coatings Spanning 250 – 5000nm Available
Calcium Fluoride (CaF2) Optical Windows are high-performance optical components known for their excellent transmission properties in the ultraviolet (UV) to infrared (IR) range. These windows are commonly used in lasers, spectroscopy, and infrared applications. With low dispersion and high resistance to thermal shock, CaF2 windows are ideal for demanding optical systems. They offer superior durability and clarity for precise optical performance in a variety of environments.
General Specification
| Bevel: | Protective as needed |
| Clear Aperture (%): | 90 |
| Edges: | Fine Ground |
| Knoop Hardness (kg/mm2): | 158.3 |
| Poisson’s Ratio: | 0.26 |
| Young’s Modulus (GPa): | 75.8 |
| Abbe Number (vd): | 94.99 |
| Axis Orientation: | Random |
| Index of Refraction (nd): | 1.434 |
| Substrate: | Calcium Fluoride (CaF2) Vacuum UV Grade |
| Coefficient of Thermal Expansion CTE (10-6/°C): | 18.85 |
| Density (g/cm3): | 3.18 |
