Domain switching in strontium-barium niobate crystals investigated by photorefractive self-focusing

Autor(en): Wischmeier, L
Wesner, M
Kratzig, E
Stichwörter: BRIGHT SPATIAL SOLITONS; FATIGUE; Optics; OXYGEN-OCTAHEDRA FERROELECTRICS; Physics; Physics, Applied; RESOLUTION; SCREENING SOLITONS; STEADY-STATE
Erscheinungsdatum: 2005
Herausgeber: SPRINGER HEIDELBERG
Journal: APPLIED PHYSICS B-LASERS AND OPTICS
Volumen: 80
Ausgabe: 4-5
Startseite: 511
Seitenende: 515
Zusammenfassung: 
The domain switching behaviour of undoped and Ce-doped Sr0.61Ba0.39Nb2O6 (SBN) crystals is investigated for different experimental conditions. For the investigation the photorefractive self-focusing technique is used. This method is demonstrated to be well suited for determining the polarization state of SBN crystals spatially resolved. We find that the repoling behaviour of nominally pure SBN is spatially inhomogeneous. The crystals are well repoled at the positive electrode, but are depolarized at the negative electrode. The larger the Ce doping concentration is, the smaller the depolarized crystal area. The domain switching depends on the switching velocity, while no influence of the electrode material is observed.
ISSN: 09462171
DOI: 10.1007/s00340-005-1742-4

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