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Refractive index database


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Optical constants of SiO2 (Silicon dioxide, Silica, Quartz)
Arosa and de la Fuente 2020: Fused silica; n 0.26–1.7 µm

Wavelength: µm
 (0.26–1.7)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.9310λ^2}{λ^2-0.079^2}+\frac{0.1735λ^2}{λ^2-0.130^2}+\frac{2.1121λ^2}{λ^2-14.918^2}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false

Comments

Fused silica. The accuracy of refractive index measurements is lower than those reported by Malitson. However, by combining phase velocity and group velocity dispersion data, the authors have derived a potentially more accurate Sellmeier formula.

References

Y. Arosa and R. de la Fuente. Refractive index spectroscopy and material dispersion in fused silica glass, Opt. Lett. 45, 4268-4271 (2020)

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