Optical constants of TiO2 (Titanium dioxide)
Bodurov et al. 2016: Nanoparticles; n 0.405–0.635 µm
Wavelength:
µm
(0.405–0.635)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{4.6796λ^2}{λ^2-0.2002148^2}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 24 °C
Comments
Titanium dioxide in anatase phase. <35 nm diameter nanoparticles dispersed in water. Concentration 5 wt.%. 24 °C. Refractive index of nanoparticles calculated using Bruggeman's effective medium approximation.
References
I. Bodurov, I. Vlaeva, A. Viraneva, T. Yovcheva, S. Sainov. Modified design of a laser refractometer, Nanoscience & Nanotechnology 16, 31-33 (2016)
Data
INFO
Titanium dioxide, TiO2
Titanium dioxide (TiO2) is a naturally occurring oxide of titanium. It possesses a high refractive index, making it an important material in optical coatings and components, especially as a white pigment in paints, cosmetics, and sunscreens due to its UV absorbing properties. The two main crystal forms used in industry are the rutile and anatase forms. Additionally, its photovoltaic and photocatalytic properties have led to research and applications in solar cells and air purification, respectively. TiO2 also has a robust chemical stability under various conditions, which makes it a preferred material for use in harsh environments.Other names
- Titanium(IV) oxide
- Titania
Minerals
- Rutile
- Anatase
- Brookite