Optical constants of RbBr (Rubidium bromide)
Li 1976: n 0.21–50 µm
Wavelength:
µm
(0.21–50)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=0.45931+\frac{0.16301λ^2}{λ^2-0.123^2}+\frac{0.29841λ^2}{λ^2-0.146^2}+\frac{0.17198λ^2}{λ^2-0.155^2}+\frac{0.12186λ^2}{λ^2-0.178^2}+\frac{0.13039λ^2}{λ^2-0.191^2}+\frac{2.520λ^2}{λ^2-114.29^2}$$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.