Optical constants of SrF2 (Strontium fluoride)
Li 1980: n 0.15–12.0 µm
Wavelength:
µm
(0.15 – 14)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=0.33973+\frac{0.7097λ^2}{λ^2-0.09597^2}+\frac{0.1788λ^2}{λ^2-26.03^2}+\frac{3.8796λ^2}{λ^2-45.60^2}$$Comments
293 K (20 °C).
References
H. H. Li. Refractive index of alkaline earth halides and its wavelength and temperature derivatives. J. Phys. Chem. Ref. Data 9, 161-289 (1980) and references therein.
* Sellmeier formula is derived by critical analysis of experimental data from several sources.
* There is a misprint in the dispersion formula in the paper: "-" instead of "+" before the last term of the equation.
Data
INFO
Strontium fluoride, SrF2
Other name
- Strontium difluoride, Strontium(II) fluoride