Holographic light scattering in photorefractive crystals with local response
Autor(en): | Goulkov, M Odoulov, S Woike, T Imbrock, J Imlau, M Kratzig, E Baumer, C Hesse, H |
Stichwörter: | BEAM; LINBO3; LITAO3; Materials Science; Materials Science, Multidisciplinary; Physics; Physics, Applied; Physics, Condensed Matter; STORAGE | Erscheinungsdatum: | 2002 | Herausgeber: | AMERICAN PHYSICAL SOC | Journal: | PHYSICAL REVIEW B | Volumen: | 65 | Ausgabe: | 19 | Zusammenfassung: | Strong polarization-isotropic wide-angle light scattering in photorefractive crystals with dominating photovoltaic response is explained referring to different experimental results obtained for LiTaO3:Fe crystals. It is shown experimentally that the steady-state amplification of the light scattering results from a nonzero shift in the temporal frequency between the coherent optical noise and the pump beam. Competition of photovoltaic and diffusion contributions in the photorefractive effect leads to a spatial and temporal asymmetry of nonlinear scattering. Contributions of ``hot'' electrons in the diffusion process have to be assumed. |
ISSN: | 10980121 | DOI: | 10.1103/PhysRevB.65.195111 |
Zur Langanzeige
Seitenaufrufe
2
Letzte Woche
0
0
Letzter Monat
0
0
geprüft am 19.05.2024