RefractiveIndex.INFO Refractive index database

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Optical constants of SUMITA - LaSF (Lanthanum dense flint)
K-LaSFn21

Wavelength: µm
 (0.365 – 1.548)  
 

Other optical constants

logX   logY   eV

Dispersion formula

$$n^2=3.3441307-3.3930036\text{×}10^{-2}λ^{2}+6.3506674\text{×}10^{-3}λ^{-2}+1.3103681\text{×}10^{-2}λ^{-4}-1.9545841\text{×}10^{-3}λ^{-6}+1.3123801\text{×}10^{-4}λ^{-8}$$

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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