PHOTOREFRACTIVE PROPERTIES OF CONGRUENT AND STOICHIOMETRIC LITHIUM-NIOBATE AT HIGH LIGHT INTENSITIES

Autor(en): JERMANN, F
SIMON, M
KRATZIG, E
Stichwörter: CHARGE-TRANSPORT; LINBO3; Optics
Erscheinungsdatum: 1995
Herausgeber: OPTICAL SOC AMER
Journal: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volumen: 12
Ausgabe: 11
Startseite: 2066
Seitenende: 2070
Zusammenfassung: 
In lithium niobate crystals the focused beam of an argon-ion laser induces birefringence changes. We investigate the intensity dependences of the saturation value of these birefringence changes, the photoconductivity, and the photorefractive sensitivity in nominally pure crystals with different lithium contents and in an iron-doped sample. All experimental results can be described assuming Fe-2+/3+ centers-of low concentration in the nominally pure samples-and, in addition, intrinsic Nb-Li polarons as a second photoactive center. (C) 1995 Optical Society of America
ISSN: 07403224
DOI: 10.1364/JOSAB.12.002066

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