Refractive index database

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Optical constants of Yb (Ytterbium)
Larruquert et al. 2003: n,k 0.000730–0.207 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants

Conditions & Spec sheet

n_is_absolute: true
wavelength_is_vacuum: true


Density: 6.81 g/cm3. Film deposited at room temperature.


1) J. I. Larruquert, J. A. Aznarez, J. A.Méndez, and J. Calvo-Angós. Optical properties of ytterbium films in the far and the extreme ultraviolet, Appl. Opt. 42, 4566-4572 (2003)
2) M. Fernández-Perea, J. I. Larruquert, J. A. Aznárez, J. A. Méndez, L. Poletto, D. Garoli, A. M. Malvezzi, A. Giglia, and S. Nannarone. Optical constants of Yb films in the 23-1700 eV range, J. Opt. Soc. Am. A 24, 3691-3699 (2007) (Numerical data kindly provided by Juan Larruquert)


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Ytterbium, Yb

Ytterbium (Yb) is a soft, malleable, and ductile chemical element with the symbol Yb and atomic number 70. It belongs to the lanthanide series of the periodic table and is typically silvery-white in its metallic form. While Yb is found in certain minerals such as monazite and euxenite, it is primarily obtained through the mining and processing of ytterbium-containing ores. Ytterbium has several isotopes, both stable and radioactive. In the realm of photonics and laser technology, ytterbium-doped materials, especially fibers and crystals, have gained prominence due to their efficiency and broad tunability, with applications ranging from high-power continuous wave lasers to ultrafast pulse generation. Ytterbium is also used in atomic clocks due to its sharp electron transition frequencies, making these clocks remarkably precise.

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