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# Optical constants of RbF (Rubidium fluoride)Li 1976: n 0.15-25 µm

Wavelength: µm
(0.15 – 25)

logX   logY   eV

## Dispersion formula [ i ]

$$n^2-1=0.395+\frac{0.535λ^2}{λ^2-0.124^2}+\frac{4.55λ^2}{λ^2-63.29^2}$$

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 derivation is based on a single data point and knowledge of the dielectric constants and the characteristic absorption peaks.