BaF2 optical window
- Excellent Transmission from 200nm – 12μm
- Resistant to High-Energy Radiation
- Provide High Transmission without AR Coatings
Barium Fluoride (BaF₂) optical windows offer excellent transmission from UV to IR (200nm – 12µm), making them ideal for spectroscopy and thermal imaging applications. BaF₂ windows have high resistance to radiation and can withstand harsh environments. They feature low refractive index and minimal absorption, ensuring high optical clarity. Commonly used in infrared systems, BaF₂ optical windows are suitable for military, aerospace, and scientific instruments. Custom sizes and coatings are available for specific applications.
General Specification
| Bevel: | Protective as needed |
| Edges: | Fine Ground |
| Knoop Hardness (kg/mm2): | 82 |
| Parallelism (arcmin): | <3 |
| Poisson’s Ratio: | 0.343 |
| Young’s Modulus (GPa): | 53 |
| Abbe Number (vd): | 81.78 |
| Index of Refraction (nd): | 1.48 |
| Substrate: | Barium Fluoride (BaF2) |
| Surface Quality: | 60-40 |
| Coefficient of Thermal Expansion CTE (10-6/°C): | 18.1 |
| Density (g/cm3): | 4.89 |
