RefractiveIndex.INFO - Refractive Index Database

Optical constants of SiO2 (Silicon dioxide, Silica, Quartz)Malitson 1965: n 0.21–6.7 µm

Wavelength: µm (0.21–6.7)

Complex refractive index (n+ik)[ i ]

Refractive index[ i ]

n =

Extinction coefficient[ i ]

k = n k LogX LogY eV

Derived optical constants

Relative permittivity (dielectric constants)[ i ] [ i ]

ϵ1 = ϵ2 =

Absorption coefficient[ i ] [ i ]

α = cm-1

Abbe number[ i ]

Vd =

Chromatic dispersion[ i ]

dn/dλ = µm-1

Group index[ i ] [ i ]

ng =

Group velocity dispersion[ i ] [ i ] [ i ]

GVD = fs2/mm D = ps/(nm km)

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

temperature: 293

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]

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