Calcium Fluoride (CaF2) Windows
• 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… Read more →
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- 5–9 units −5%
- 10+ units −10%
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| SKU | Thickness · Diameter · Group · Substrate | |
|---|---|---|
| 530-5253 | 3 mm·ø 25.4 mm·CaF2 Windows UV Grade·UV grade CaF2 |
9 in stock
Ships in: 2–5 calendar days
$81
|
| 530-5385 | 5 mm·ø 38.1 mm·CaF2 Windows UV Grade·UV grade CaF2 |
Out of stock
Ships in: 62–65 calendar days
$174
|
| 530-5506 | 6 mm·ø 50.8 mm·CaF2 Windows UV Grade·UV grade CaF2 |
Out of stock
Ships in: 62–65 calendar days
$289
|
| 530-6121 | 1 mm·ø 12 mm·IR Grade CaF2 Protective Windows for Spectroscopy Applications·IR grade CaF2 |
578 in stock
Ships in: 2–5 calendar days
$7
|
| 530-6131 | 1.5 mm·ø 25.4 mm·IR Grade CaF2 Protective Windows for Spectroscopy Applications·IR grade CaF2 |
98 in stock
Ships in: 2–5 calendar days
$24
|
| 530-6151 | 2 mm·ø 50.8 mm·IR Grade CaF2 Protective Windows for Spectroscopy Applications·IR grade CaF2 |
10 in stock
Ships in: 2–5 calendar days
$70
|
| 530-6251 | 1 mm·ø 25.4 mm·CaF2 Windows UV Grade·UV grade CaF2 |
33 in stock
Ships in: 2–5 calendar days
$93
|
| 530-6252 | 2 mm·ø 25.4 mm·CaF2 Windows UV Grade·UV grade CaF2 |
Out of stock
Ships in: 62–65 calendar days
$88
|
| 530-6253 | 3 mm·ø 25.4 mm·CaF2 Windows IR Grade·IR grade CaF2 |
30 in stock
Ships in: 2–5 calendar days
$70
|
| 530-6385 | 5 mm·ø 38.1 mm·CaF2 Windows IR Grade·IR grade CaF2 |
10 in stock
Ships in: 2–5 calendar days
$115
|
| 530-6506 | 6 mm·ø 50.8 mm·CaF2 Windows IR Grade·IR grade CaF2 |
17 in stock
Ships in: 2–5 calendar days
$202
|
| 530-6710 | 10 mm·ø 70 mm·CaF2 Windows IR Grade·IR grade CaF2 |
Out of stock
Ships in: 62–65 calendar days
$266
|
| 530-6756 | 6 mm·ø 75 mm·CaF2 Windows IR Grade·IR grade CaF2 |
Out of stock
Ships in: 62–65 calendar days
$347
|
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Specifications
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 |
| 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 |
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 |
Classification
| Wavelength | UV|IR |
Description
- 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.
