Optical constants of LiF (Lithium fluoride)
Li 1976: n 0.10–11 µm
Wavelength:
µm
(0.1–11)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.92549λ^2}{λ^2-0.07376^2}+\frac{6.96747λ^2}{λ^2-32.790^2}$$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.
Data
INFO
Lithium fluoride, LiF
Lithium fluoride (LiF) is a simple ionic compound commonly used in optics and radiation detection. It is transparent over a broad spectral range, from ultraviolet to mid-infrared wavelengths. This characteristic makes it an ideal material for specialized UV and IR windows and lenses. It also serves as a mount for samples to be studied by X-ray crystallography. One of its notable features is its high resistance to radiation damage, making it useful in environments with high-energy radiation. However, it is relatively soft and is moisture-sensitive, requiring careful handling to maintain its optical properties.Other name
- Lithium(I) fluoride