RefractiveIndex.INFO Refractive index database

Shelf

Book

Page

Optical constants of SUMITA - LaK (Lanthanum crown)
K-LaKn14

Wavelength: µm
 (0.365 – 1.548)  
 

Other optical constants

logX   logY   eV

Dispersion formula

$$n^2=2.9702462-1.4464552\text{×}10^{-2}λ^{2}+2.148263\text{×}10^{-2}λ^{-2}+4.6535912\text{×}10^{-4}λ^{-4}-1.6778433\text{×}10^{-5}λ^{-6}+1.5760726\text{×}10^{-6}λ^{-8}$$

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

More info - wiki

-