Absorption spectroscopy and energy levels of rare earth impurity centres in SrxBa1-xNb2O6 crystals
| Autor(en): | Demirbilek, R. Kutsenko, A. B. Pankrath, R. Kapphan, S. E. |
Stichwörter: | BAND; CE; DOPED SBN; LANTHANIDE-ION SERIES; LUMINESCENCE; PHONON COUPLING STRENGTH; Physics; Physics, Condensed Matter; RESONANCE; SPECTRA; SR0.61BA0.39NB2O6; STRONTIUM-BARIUM NIOBATE | Erscheinungsdatum: | 2009 | Herausgeber: | WILEY-V C H VERLAG GMBH | Journal: | PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | Volumen: | 246 | Ausgabe: | 6 | Startseite: | 1306 | Seitenende: | 1312 | Zusammenfassung: | The absorption spectra of Ce3+, Nd3+, Eu3+, Tb3+, Er3+, Tm3+ and Yb3+ rare earth (RE) impurity ions incorporated in SrxBa1-xNb2O6 (SBN) crystals were studied in a wide spectral range from the visible to the mid-infrared. On the basis of the analysis of the Cd3+ absorption line shapes and their polarization properties the conclusion was drawn about the incorporation of multiple Ce3+ centres mostly in the position Al of the crystal lattice of SBN. From the observed temperature dependence of the Ce3+ absorption line broadening the electron coupling strength (160 cm(-1)) and effective phonon energy (300 cm(-1)) were determined. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim |
ISSN: | 03701972 | DOI: | 10.1002/pssb.200844336 |
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geprüft am 01.06.2024
