Light-induced charge transport properties of Sr0.61Ba0.39Nb2O6:Ce crystals

Autor(en): Buse, K
vanStevendaal, U
Pankrath, R
Kratzig, E
Stichwörter: BATIO3; HOLOGRAPHIC STORAGE; INTENSITY-DEPENDENT ABSORPTION; KNBO3-FE; Optics; PHOTOCONDUCTIVITY; SBN-CE; STRONTIUM-BARIUM NIOBATE; TIME; TITANATE
Erscheinungsdatum: 1996
Herausgeber: OPTICAL SOC AMER
Journal: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volumen: 13
Ausgabe: 7
Startseite: 1461
Seitenende: 1467
Zusammenfassung: 
Measurements of absorption, photoconductivity, and dark conductivity and of light-induced absorption changes in photorefractive Sr0.61Ba0.39Nb2O6:Ce crystals with Ce concentrations from 0.025 wt% to 1.6 wt% are carried out for different light wavelengths, intensities, and polarizations. The experimental findings are interpreted alternatively by the two-center or by the three-valence model. The results yield that the concentrations of the deep and of the more shallow photorefractive levels increase linearly with the Ce concentration and show that for SBN:Ce the two-center model is probably more appropriate. (C) 1996 Optical Society of America
ISSN: 07403224
DOI: 10.1364/JOSAB.13.001461

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