RefractiveIndex.INFO

Refractive index database


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Optical constants of Al2O3 (Aluminium sesquioxide, Sapphire, Alumina)
Malitson 1962: α-Al2O3 (Sapphire); n(o) 0.2652-5.577 µm

Wavelength: µm
 (0.2652 – 5.577)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.023798λ^2}{λ^2-0.06144821^2}+\frac{1.058264λ^2}{λ^2-0.1106997^2}+\frac{5.280792λ^2}{λ^2-17.92656^2}$$

Comments

Synthetic sapphire, Ordinary ray (o), 24 °C

References

I. H. Malitson. Refraction and dispersion of synthetic sapphire, J. Opt. Soc. Am. 52, 1377-1379 (1962)

Data

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

INFO

Aluminium sesquioxide, Al2O3

Other names

  • Alumina
  • Aluminium oxide
  • Aloxite
  • Aluminium oxide (α)
  • Aluminium(III) oxide
  • Dialuminium trioxide

Mineral

  • Corundum

Gemstones

  • Sapphire
  • Ruby

External links