Optical constants of LaF3 (Lanthanum fluoride)
Amotchkina et al, 2020: n 0.4–12 µm, k 9.5–12 µm
Wavelength:
µm
(0.4–12)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=-0.812958+\frac{2.030974λ^2}{λ^2-0.01057737}+\frac{0.024492λ^2}{λ^2+0.851254}+\frac{4.544580λ^2}{λ^2-1149.999773}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false substrate: ZnSe film_thickness: 1.368 µm
Comments
1.368 µm LaF3 film deposited on 1 mm thick ZnSe substratee by e-beam evaporation at 120 ℃ substrate temperature.
References
T. Amotchkina, M. Trubetskov, D. Hahner, V. Pervak, Characterization of e-beam evaporated Ge, YbF3, ZnS, and LaF3 thin films for laser-oriented coatings, Appl. Opt. 59, A40-A47 (2020) (Data kindly provided by Tatiana Amotchkina [data] [description])
Data
INFO
Lanthanum fluoride, LaF3
Other names
- Lanthanum trifluoride
- Lanthanum(III) fluoride
Mineral
- Fluocerite-(La)