Barium Fluoride is used in spectroscopic components. Barium Fluoride is often suitable for applications in the passive IR band (8 to 14 μm) and is often used as a viewport window for thermography. For an equivalent thickness the transmission extends approximately 1 micron further into the IR than Calcium Fluoride. The highest quality Barium Fluoride also has application as the fastest known scintillator material and is used in High Energy Physics Experiments.
Specifications
Transmission Range
0.15 to 12 μm
Reflection Loss
6.5% at 5 μm (2 surfaces)
Absorption Coefficient
3.2 x 10-4 cm-1 @ 6 microns
Refractive Index
1.45 at 5 μm
Melting Point
1386 °C
Hardness
Knoop 82 with 500g indenter
Diameter
Thickness
Type
10 mm
0.5 mm
IR polished
10 mm
2 mm
IR polished
12 mm
2 mm
IR polished
13 mm
1 mm
IR polished
13 mm
2 mm
IR polished
15 mm
2 mm
IR polished
16 mm
0.5 mm
IR polished
16 mm
1 mm
IR polished
16 mm
3 mm
IR polished
19 mm
2 mm
IR polished
20 mm
2 mm
IR polished
22 mm
0.5 mm
IR polished
25 mm
1 mm
IR polished
25 mm
2 mm
IR polished
25 mm
3 mm
IR polished
25 mm
4 mm
IR polished
25.4 mm
0.5 mm
IR polished
25.4 mm
1 mm
IR polished
25.4 mm
2 mm
IR polished
25.4 mm
4 mm
IR polished
25.4 mm
5 mm
IR polished
25.4 mm
6 mm
IR polished
32 mm
3 mm
DRILLED
32 mm
3 mm
IR polished
38 mm
3 mm
IR polished
40 mm
5 mm
IR polished
50 mm
3 mm
IR polished
63 mm
5 mm
IR polished
75 mm
3 mm
IR polished
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