Refractive index database

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Optical constants of YbF3 (Ytterbium trifluoride)
Amotchkina et al, 2020: Thin film; n 0.4–14 µm, k 9.0–14 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]


Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
substrate: ZnSe
film_thickness: 1.95e-6


1.95 µm YbF3 film deposited on 1 mm thick ZnSe substratee by e-beam evaporation at 120 °C substrate temperature.


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])


[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]


Ytterbium trifluoride, YbF3

Ytterbium trifluoride (YbF3) is a chemical compound composed of ytterbium and fluorine. As with many lanthanide fluorides, YbF3 possesses unique optical properties, making it a substance of interest in the fields of optics and photonics. When used as a dopant in certain glass systems, it can imbue the host material with specific luminescent properties advantageous for laser applications. Furthermore, its high thermal stability, coupled with its characteristic low phonon energy, positions YbF3 as a potential material for infrared non-linear optical applications. Ytterbium trifluoride is also used in metal-organic frameworks and other chemical synthesis as a fluoride source or for its ytterbium content. In its solid form, YbF3 typically appears as a white or off-white crystalline powder.

Other names

  • Ytterbium(III) fluoride
  • Ytterbium fluoride

External links