Parametric hybrid scattering from light-induced ferroelectric and photorefractive structures
Autor(en): | Selinger, A. Voelker, U. Dieckmann, V. Imlau, M. Goulkov, M. |
Stichwörter: | CRYSTALS; GRATINGS; LITHIUM-NIOBATE; Optics | Erscheinungsdatum: | 2007 | Herausgeber: | OPTICAL SOC AMER | Journal: | OPTICS EXPRESS | Volumen: | 15 | Ausgabe: | 8 | Startseite: | 4684 | Seitenende: | 4693 | Zusammenfassung: | Processes of photo-induced light scattering are studied in single crystals of LiNbO3:Fe to uncover the origin of a new part of the entire scattering pattern which can be observed on a viewing screen. The new scattering manifests itself as two arcs enclosing the directly transmitting pump beam. It is shown that this type of scattering is due to a parametric wave-mixing process of coherent optical noise and a pump beam on a combination of photorefractively recorded phase-gratings and photo-induced ferroelectric structures. Phase-matching conditions corresponding to the new scattering are introduced. All photo-induced scattering phenomena contributing to the total scattering pattern are discussed, compared and classified. (c) 2007 Optical Society of America |
ISSN: | 10944087 | DOI: | 10.1364/OE.15.004684 |
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