Optical constants of KCl (Potassium chloride)
Li 1976: n 0.18–35 µm
Wavelength:
µm
(0.18–35)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=0.26486+\frac{0.30523λ^2}{λ^2-0.100^2}+\frac{0.41620λ^2}{λ^2-0.131^2}+\frac{0.18870λ^2}{λ^2-0.162^2}+\frac{2.6200λ^2}{λ^2-70.42^2}$$Comments
297 K (24 °C).
References
H. H. Li. Refractive index of alkali halides and its wavelength and temperature derivatives. J. Phys. Chem. Ref. Data 5, 329-528 (1976) and references therein.
* Sellmeier formula is derived by critical analysis of experimental data from several sources.