Complex Terahertz Conductivity of Sputter-Deposited TiO2 Thin Films
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)(2022)
Abstract
A 150 nm TiO 2 film is studied with THz-Time Domain Spectroscopy (THz-TDS) from where we determine the complex sheet conductance and find that it takes the shape of a Lorentz-resonance. Comparing data to the Drude-Smith model of conductivity and the Surface Plasmon model yields the best resemblance to the latter, which suggests that the resonance is caused by surface plasmons.
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Key words
thin films,sputter-deposited
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