Optical constants of HfO2 (Hafnium dioxide, Hafnia)
Al-Kuhaili 2004: n 0.2–2.0 µm
Wavelength:
µm
(0.2–2)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n=1.875+6.28\text{×}10^{-3}λ^{-2}+5.80\text{×}10^{-4}λ^{-4}$$Comments
Thin films of hafnium oxide deposited by electron beam evaporation.
References
M. F. Al-Kuhaili. Optical properties of hafnium oxide thin films and their application in energy-efficient windows. Opt. Mat. 27, 383-387 (2004)
Data
INFO
Hafnium dioxide, HfO2
Hafnium dioxide (HfO2) is a high-index, low-absorption material used extensively in optical applications. It is especially valuable for making thin-film dielectric coatings for mirrors, anti-reflective coatings, and beam splitters. Due to its excellent thermal stability and resistance to chemical corrosion, it is well-suited for harsh environments. Additionally, its high refractive index makes it an attractive material for planar waveguides and other integrated optics components. Beyond its optical uses, hafnium dioxide is also a key material in the fabrication of advanced gate dielectrics in field-effect transistors, contributing to the miniaturization and performance improvement of electronic devices.Other names
- Hafnia
- Hafnium(IV) oxide
- Hafnium oxide