Linear and Nonlinear Absorption of Titanium Dioxide Films Produced by Plasma Ion-Assisted Electron Beam Evaporation: Modeling and Experiments
Source abstract
Abstract
Titanium dioxide films were prepared by plasma ion-assisted electron beam evaporation. Linear optical properties were investigated in terms of spectrophotometry using the beta-distributed oscillator (ß_do) model as a parametrized dispersion law. The nonlinear two-photon absorption coefficient of titanium dioxide was determined by means of the laser-induced deflection technique at a wavelength of 800 nm. The obtained values of (2–5) × 10−11 cm/W were consistent with published experimental values for rutile as well as for simulations performed in the frames of the ß_do and Sheik–Bahae models.
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Research context
OpenAlex topics: Surface Roughness and Optical Measurements · Laser Material Processing Techniques · Laser-induced spectroscopy and plasma
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Affiliations
Fraunhofer Institute of Applied Optics and Precision Engineering, IOF, Albert-Einstein-Str. 7, 07745 Jena, Germany
Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany
Funding
Bundesministerium für Bildung und Forschung · European Regional Development Fund
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