High-Purity Calcium Fluoride Infrared Optics for a Range of Laser, IR And UV Applications
The wide transmission range, refractive index homogeneity and high laser-damage threshold make CaF2 ideal for eximer laser products. Optical components for UV, through visible and infrared benefit from high durability to normal atmospheres and CaF2's low solubility and its resistance to reagents. Laser components, from lenses and windows, to beam-steering prisms and mirrors are offered in high-purity Calcium Fluoride material.
BonTek provides optical CaF2 material in single-crystal optical quality, fabricated to order.
| Substance | Form | Diameter Range | Thickness Range | Transmission Range | Standard Surface Finish |
| Calcium Fluoride | Single Crystal | 5mm - 300mm | 1mm - 50mm | 0.15 - 7.00 um | Fine Ground / Optical Polish |
Material Properties
| Transmission Range | 0.15 - 7.0 microns |
| Internal Transmission | >99.5% from 193nm to 7µm |
| Refractive Index Homogeneity | Range 3 to 15ppm @632.8nm PV |
| Bubbles & Inclusions | 1/1 x 0.050 (typ.) |
| Stress Birefringence | Range 0.5nm/cm to 15nm/cm @632.8nm |
| Crystal Orientation | <111>, <100> or Random |
| Density | 3.18 gm/cc |
| Melting Point | 1420°C |
| Poisson Ratio (µ) | 0.260 |
| Knopp Hardness | 158.3 Knoop |
| Crystal Structure | Cubic |
| Young's Modulus [GPa] | 75.8 |
| Shear Modulus [GPa] | 33.77 |
Acceptance Check
1. The product is fragile. We have adequately packed it and labeled it fragile. We deliver through excellent domestic and international express companies to ensure transportation quality.
2. After receiving the goods, please handle with care and check whether the outer carton is in good condition. Carefully open the outer carton and check whether the packing boxes are in alignment. Take a picture before you take them out.
3. Please open the vacuum package in a clean room when the products are to be applied.
4. If the products are found damaged during courier, please take a picture or record a video immediately. DO NOT take the damaged products out of the packaging box! Contact us immediately and we will solve the problem well.
