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Optical constants of CRYSTALS
Sapphire (Al2O3)

Wavelength: µm
 (0.2 – 5)  
 

Other optical constants

logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.4313493λ^2}{λ^2-0.0726631^2}+\frac{0.65054713λ^2}{λ^2-0.1193242^2}+\frac{5.3414021λ^2}{λ^2-18.028251^2}$$

Comments

Synthetic sapphire, Ordinary ray (o), 20 °C

Data

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

Additional information

n_is_absolute: false
λ_is_vacuum: false
temperature: 20 °C
direction: o

References

1) I. H. Malitson and M. J. Dodge. Refractive Index and Birefringence of Synthetic Sapphire, J. Opt. Soc. Am. 62, 1405 (1972)
2) M. J. Dodge, "Refractive Index" in Handbook of Laser Science and Technology, Volume IV, Optical Materials: Part 2, CRC Press, Boca Raton, 1986, p. 30
* Ref. 1 is a talk abstract in a conference program; Ref. 2 provides Sellmeier equation

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