Linear and Nonlinear Absorption of Titanium Dioxide Films Produced by Plasma Ion-Assisted Electron Beam Evaporation: Modeling and Experiments
Olaf Stenzel, Steffen Wilbrandt, Christian Mühlig, Sven Schröder
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.
Topics & Concepts
Titanium dioxideIonRutilePlasmaMaterials scienceAbsorption (acoustics)TitaniumAnalytical Chemistry (journal)Electron beam physical vapor depositionWavelengthEvaporationElectronOpticsLaserAtomic physicsChemistryThin filmOptoelectronicsNanotechnologyPhysicsThermodynamicsComposite materialOrganic chemistryChromatographyMetallurgyQuantum mechanicsSurface Roughness and Optical MeasurementsLaser Material Processing TechniquesLaser-induced spectroscopy and plasma