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CaF2 Windows UV Grade
CaF2 Windows IR Grade
Physical Properties
| Crystal Type | cubic |
| Density, g/cm3 | 3.18 |
| Melting point, °C | 1418 |
| Refractive index @ 1.0 µm | n=1.4289 |
| Transmission band, µm | 0.125-10 |
| Lattice constant, A | a=5.462 |
Specifications of CaF2 Windows
| Material | CaF2 |
| Surface quality | 40-20 scratch & dig (MIL-PRF-13830B) |
| Clear aperture | 90% of diameter |
| Diameter tolerance | +0.0 -0.13 mm |
| Thickness tolerance | ±0.2 mm |
| Parallelism | 3 arcmin |
| Flatness | λ/4 @ 633 nm |
| Spectral range | UV, VIS, IR |
IR grade CaF2 protective windows for spectroscopy application (optically polished)
| Material | CaF2 |
| Surface quality | 80-50 scratch & dig (MIL-PRF-13830B) |
| Clear aperture | 90% of diameter |
| Diameter tolerance | +0.0 -0.13 mm |
| Thickness tolerance | ±0.2 mm |
| Parallelism | <10 arcmin |
| Flatness | optically polished |
| EKSMA Optics Calcium Fluoride (CaF2) Windows
64.93 kB |
- Calcium fluoride (CaF2) has useful transmission over the spectral range from 0.2 to 8.0 microns
- UV and IR grade CaF2 windows are popular choice for specroscopic and thermal imaging applications
- CaF2 windows have high damage threshold and can be used as mirror substrates for UV laser systems
Calcium fluoride windows have a wide transmission range and can be used in ultraviolet, visible and infrared applications.
Due to its composition CaF2 (Calcium Fluoride) has much longer useful life than most materials when used in a fluorine environment.
Calcium Fluoride (CaF2) mirrors, prisms, beamsplitters and beam selectors are available upon request.
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Eksma Optics
Contacts
- Address: Dvarcioniu st. 2B LT-10233 Vilnius, Lithuania
- Phone: (+370) 5 272 99 00
- Fax: (+370) 5 272 92 99
- E-mail: info@eksmaoptics.com
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