Fused silica IR grade (KI)

Properties: Optical :: Thermal :: Mechanical :: Chemical

Optical SiO2 ( Fused Silica IR Grade )

Refractive Index at ne
1.4601
Refractive Index at nF'-nC'
0.0068
Refractive Index at nD
1.4584
Thermal Coefficient of Refractive Index at ne,оС-1 for +20оС
1010-6
Transmission Range, microns (thickness 10мм)
0.18¸3.5
Transmittance ti(l) vs. wavelength l

Internal Transmittance ti(l) vs.
wavelength l
l,мкм
ti(l)
0.220
0.220
0.230
0.435
0.240
0.525
0.260
0.800
0.270
0.930
0.280
0.999
0.700
0.999
1.000
0.999
1.500
0.999
2.000
0.999
2.720
0.999
2.800
0.955
2.900
0.900
3.000
0.870
3.750
0.180
Refractive Index n vs.
wavelength l
l,мкм
n(l)
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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Thermal SiO2 ( Fused Silica IR Grade )

Thermal Linear Expansion at, оС-1 for 0¸+50оС
4.010-6
Thermal Conductivity, W/(m оС) at 20 оС
1.35
Specific Heat Capacity, J/(kg оС)
728.0
Melting Point, оС
1900

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Mechanical SiO2 ( Fused Silica IR Grade )

Density, g/cm3 at 20 оС
2.21
Poisson Ratio
0.17
Young Modulus (Е), Pa
7.361010
Shear Modulus (G), Pa
3.14 1010

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Chemical SiO2 ( Fused Silica IR Grade )

Solubility SiO2
in water

in acids

insoluble

insoluble