Optical constants of CRYSTRAN - Optical materials
SiO2 - Fused silica (infrared grade)
Wavelength:
µm
(0.20–4.83)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Comments
Fused Silica is a hard, high temperature pure glass. Fused Silica is used for UV and visible components. Infra-red grades of Fused Silica are available for NIR use.
Fused Silica is the glassy form of Quartz and is thus isotropic. Fused Silica is tough and hard and has a very low expansion. Normal varieties of Fused Silica contain water which gives strong absortion in the IR. Water-free varieties of Fused Silica are available.
REFERENCES:
(1) Handbook Optical Constants, ed Palik, V1, ISBN 0-12-544420-6
(2) Toyoda & Yabe J. Phys. D: Appl. Phys.,1 6 (1983)
References
Crystran Ltd.
The Crystran handbook of infra-red and ultra-violet optical materials (5th edition, 2023)
See also
Crystran Fused silica online data sheet
Data
Additional information
Properties of SiO2 - Fused silica (infrared grade)
density: - value: 2203 thermal_dispersion: - type: constant value: 1.29E-5 thermal_expansion: - temperature: 300 value: 5.5E-7 hardness: - type: Knoop indenter_mass: 0.2 value: 4900000000 melting_point: - value: 1873 thermal_conductivity: - value: 1.38 youngs_modulus: - value: 73100000000 poissons_ratio: - value: 0.17 solubility: - value: 0