Threshold of oscillation in a ring-loop phase conjugator as a second-order optical phase transition

Autor(en): Goul'kov, M
Shinkarenko, O
Odoulov, S
Kratzig, E
Pankrath, R
Stichwörter: Optics; Physics; Physics, Applied
Erscheinungsdatum: 2001
Herausgeber: SPRINGER-VERLAG
Journal: APPLIED PHYSICS B-LASERS AND OPTICS
Volumen: 72
Ausgabe: 2
Startseite: 187
Seitenende: 190
Zusammenfassung: 
The threshold behavior is studied for a ring-loop coherent oscillator with a photorefractive strontium barium niobate (SBN) sample. A soft onset of oscillation is revealed and critical slowing down is observed in the temporal development of light-induced scattering below the threshold, thus pointing to a similarity with a second-order phase transition.
ISSN: 09462171
DOI: 10.1007/s003400000434

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