Barium Fluoride (BaF2) Windows
• Useful transmission range covers 0.265-10 µm • Most resistant to high energy radiation among fluorides listed in this catalogue Barium fluoride is used for optical windows, prisms and lenses transmitting from… Read more →
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| SKU | Diameter · Thickness | |
|---|---|---|
| 540-7251 | ø 25.4 mm·3 mm |
11 in stock
Ships in: 2–5 calendar days
$69
|
| 540-7252 | ø 25.4 mm·2 mm |
56 in stock
Ships in: 2–5 calendar days
$69
|
| 540-7445 | ø 44.6 mm·3.5 mm |
76 in stock
Ships in: 2–5 calendar days
$115
|
| 540-7503 | ø 50.8 mm·3 mm |
7 in stock
Ships in: 2–5 calendar days
$253
|
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Specifications
Specifications
| Material | BaF₂ |
| Surface quality | 60-40 scratch & dig (MIL-PRF-13830B) |
| Clear aperture | 90% of diameter |
| Diameter tolerance | +0.0 -0.25 mm |
| Thickness tolerance | 0.2 mm |
| Parallelism | 3 arcmin |
| Flatness | 1 λ per inch @ 633 nm |
Physical Properties
| Crystal type | cubic |
| Density, g / cm³ | 4.89 |
| Melting point, °C | 1386 |
| Refractive index @ 0.265 µm | n = 1.51217 |
| Refractive index @ 10.3 µm | n = 1.39636 |
| Transmission band, µm | 0.15-12 |
Classification
| Wavelength | UV|IR |
Description
- Useful transmission range covers 0.265-10 µm
- Most resistant to high energy radiation among fluorides listed in this catalogue
Barium fluoride is used for optical windows, prisms and lenses transmitting from ultraviolet into infrared, it can be used as an infrared laser window or lens. BaF₂ is recommended for use as a vacuum ultraviolet window where high radiation resistance is required. BaF₂ is less soluble than LiF, but relatively more soluble than MgF₂ and CaF₂.
