RefractiveIndex.INFO

Refractive index database


Shelf

Book

Page

Optix.eXpert

Optix.eXpert is our new website that aims at connecting optical professionals with employers looking to outsource optics related work. Sign up and post a listing now to start offering a service.

Optical constants of CRYSTALS
Quartz (SiO2)

Wavelength: µm
 (0.21 – 6.7)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.6961663λ^2}{λ^2-0.0684043^2}+\frac{0.4079426λ^2}{λ^2-0.1162414^2}+\frac{0.8974794λ^2}{λ^2-9.896161^2}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20 °C

Comments

Fused silica, 20 °C

References

1) I. H. Malitson. Interspecimen comparison of the refractive index of fused silica, J. Opt. Soc. Am. 55, 1205-1208 (1965)
2) C. Z. Tan. Determination of refractive index of silica glass for infrared wavelengths by IR spectroscopy, J. Non-Cryst. Solids 223, 158-163 (1998)
* Sellmeier formula is reported in Ref. 1 for the 0.21-3.71 μm wavelength range. Ref. 2 verifies the validity of the formula up to 6.7 μm.

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

Silicon dioxide, SiO2

Other names

  • Quartz
  • Silica
  • Silicon oxide
  • Silicon(IV) dioxide

Polymorphs

  • Alpha quartz (α-quartz, most common)
  • Beta quartz (β-quartz, only stable at temperatures above 573 °C)
  • Tridymite
  • Cristobalite
  • Coesite
  • Stishovite
  • Lechatelierite
  • Chalcedony

External links


Crystals

External links