红外级熔融石英 Fused Silica IR Grade (SiO2)

Refractive Index at n_e

1.4601

Refractive Index at n_F' - n_C'

0.0068

Refractive Index at n_D

1.4584

Refractive Index at n_F - n_C'

0.0068

Thermal Coefficient of Refractive Index at nC microns for +20 ℃

100 x 10^-7

Transmission Range, microns

0.18 - 3.5

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

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

Solubility

in water, gram/100 cm³

insoluble

in acids

insoluble

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

Wavelength, Microns

Internal Transmittance

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