The optical properties of bismuth germanium oxide single crystals

• Main Authors: Golubović Aleksandar, Gajić Radoš, Chen Changkang, Valčić Andreja
• Format: Article
• Language: English
• Published: Serbian Chemical Society 2000-01-01
• Series: Journal of the Serbian Chemical Society
• Subjects: czochralski technique; bismuth germanium oxide; single crystals; optical properties; optical phonons
• Online Access: http://www.doiserbia.nb.rs/img/doi/0352-5139/2000/0352-51390009611G.pdf
• ISSN: 0352-5139; 1820-7421

Bi12GeO20 single crystals were grown by the Czochralski technique. Suitable polishing and etching solutions were determined. Reflection spectra were recorded in the wave numbers range 20-5000 cm-1, and compared with the spectra of Bi12SiO20 single crystals to study the position of the phonon modes. The optical constants of the Bi12GeO20 single crystals were obtained using Kramers-Kronig analysis. The obtained results are dicussed and compared with published data.