Abstract
It is established that the mechanisms of light absorption in titanium dioxide films differ in the visible and near-infrared spectral ranges. In the near-infrared range of the spectrum, the contribution to the absorption coefficient made by the intrinsic defects associated with the nonstoichiometry of the film composition is dominant. At the same time, in the visible spectral range, the main contribution to absorption is most likely made by external defects, namely, foreign inclusions and impurities contained in the starting material for film deposition. It is shown that the introduction of monitoring of the photothermal signal from the pellets of the raw material makes it possible to minimize and stabilize the absorption in the visible region of the spectrum.
© 2019 Optical Society of America
PDF Article
More Like This
Mid-infrared optical properties of thin films of aluminum oxide, titanium dioxide, silicon dioxide, aluminum nitride, and silicon nitride
Jan Kischkat, Sven Peters, Bernd Gruska, Mykhaylo Semtsiv, Mikaela Chashnikova, Matthias Klinkmüller, Oliana Fedosenko, Stephan Machulik, Anna Aleksandrova, Gregorii Monastyrskyi, Yuri Flores, and W. Ted Masselink
Appl. Opt. 51(28) 6789-6798 (2012)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Add to BibSonomy