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Optical constants of SUMITA - LaK (Lanthanum crown)
K-LaK18

Wavelength: µm
 (0.365 – 1.548)  
 

Other optical constants

logX   logY   eV

Dispersion formula

$$n^2=2.9333796-1.4920134\text{×}10^{-2}λ^{2}+2.0207432\text{×}10^{-2}λ^{-2}+4.1238589\text{×}10^{-4}λ^{-4}-1.230332\text{×}10^{-5}λ^{-6}+1.1436994\text{×}10^{-6}λ^{-8}$$

Comments

Refractive index is relative to air at standard conditions; Wavelength in dispersion formula is as measured in air and expressed in micrometers

Data

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

References

Sumita Optical Glass Data Book

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