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12 May 2009 Optical spectroscopy of terbium-scandium-aluminium garnet and terbium-scandium perovskite
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Abstract
Tb3Sc2Al3O12-TbScO3 eutectic crystallizes in a rodlike microstructure, and its potential to exhibit photonic bandgap has been presented tentatively. In order to model its optical properties there is a need for precise determination of the optical properties of its component materials in a wide spectral range. Spectroscopic data in the range from 0.6 to 6.5 eV (190-2100 nm) were obtained using spectroscopic ellipsometer UVISEL, Horiba Jobin-Yvon. The measurement was completed with mid infrared reflection data using Bruker FTIR spectrometer in the spectral range from 7500 to 550 cm-1. Optical functions were obtained using fitting of the data with model dielectric function fulfilling the Kramers-Kronig dispersion relations. Obtained optical functions enable to model the optical properties of self-organized eutectic micro- and nanostructures.
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K. Postava, L. Halagačka, D. Hrabovský, O. Životský, J. Pištora, D. A. Pawlak, S. Turczynski, and K. Kolodziejak "Optical spectroscopy of terbium-scandium-aluminium garnet and terbium-scandium perovskite", Proc. SPIE 7353, Metamaterials IV, 735311 (12 May 2009); https://doi.org/10.1117/12.820789
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