RefractiveIndex.INFO

Refractive index database


nk database   |   n2 database   |   about

Shelf

Book

Page

Optical constants of CRYSTRAN - Optical materials
SiO2 - Fused silica (infrared grade)

Wavelength: µm
 (0.20–4.83)  
 

Complex refractive index (n+ik)[ i ]


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

[CSV - comma separated]   [TXT - tab separated]   [Full database record]

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