Optical
Refractive Index at ne | 1.4601 |
Refractive Index at nF' - nC' | 0.0068 |
Refractive Index at nD | 1.4584 |
Refractive Index at nF - nC' | 0.0068 |
Thermal Coefficient of Refractive Index at nC microns for +20 ℃ | 100 x 10-7 |
Transmission Range, microns | 0.18 - 3.5 |
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Thermal
Thermal Linear Expansion, ℃-1 for ±50 ℃ | 4.0 x 10-6 |
Thermal Conductivity, W/(m * ℃) at 20 ℃ | 1.35 |
Specific Heat Capacity, J/(kg * ℃) | 0.728 x 103 |
Melting Point, ℃ | 1900 |
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Mechanical
Density, g/cm3 at 20 ℃ | 2.21 |
Young Modulus (E), Pa | 7.36 x 1010 |
Shear Modulus (G), Pa | 3.14 x 1010 |
Poisson Ratio | 0.17 |
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Chemical
Solubility | |
in water, gram/100 cm3 | insoluble |
in acids | insoluble |
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Ref. Index vs. Wavelength λ
Wavelength, Microns | Refractive Index |
0.1700 | 1.615 |
0.1850 | 1.575 |
0.2000 | 1.550 |
0.2144 | 1.5337 |
0.2803 | 1.4940 |
0.3021 | 1.4872 |
0.3650 | 1.4745 |
0.4046 | 1.4696 |
0.4358 | 1.4666 |
0.5461 | 1.4601 |
0.5876 | 1.4585 |
0.5893 | 1.4584 |
0.6438 | 1.4567 |
0.6563 | 1.4564 |
0.8621 | 1.4525 |
1.0830 | 1.4494 |
1.3950 | 1.4458 |
1.7091 | 1.4421 |
2.0581 | 1.4372 |
3.2439 | 1.4131 |
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Internal Transmittance τ i (λ) vs. Wavelength λ
Wavelength, Microns | Internal Transmittance |
0.170 | 0.63 |
0.200 | 0.96 |
0.400 | 0.999 |
0.500 | 0.999 |
0.700 | 0.999 |
0.900 | 0.999 |
1.000 | 0.999 |
1.385 | 0.880 |
2.000 | 0.999 |
2.200 | 0.580 |
2.300 | 0.880 |
2.380 | 0.950 |
2.500 | 0.790 |
2.720 | 0.000 |
2.800 | 0.000 |
2.900 | 0.295 |
3.000 | 0.670 |
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Custom sizes and specifications are available on request.
