Photorefractive effect in (001)-cut GaAs at short pulse excitation

Kestutis Jarašiunas (1) , L. Bastiene (1) , Philippe Delaye (2) , Gérald Roosen (2)

1 Material Science and Applied Research Institut (Vilnius)
2 Laboratoire Charles Fabry de l'Institut d'Optique / Manolia

We present experimental studies of photorefractive effect in non-photorefractive orientations of LEC-grown GaAs crystals. Picosecond DFWM experiments, carried out in different samples, show that forbidden photorefractive signal correlates well with dislocation density and confirms hypothesis that the effect arises from strain fields around growth-defects

Domaines: Optique [physics.optics]

Kestutis Jarašiunas, L. Bastiene, Philippe Delaye, Gérald Roosen. Photorefractive effect in (001)-cut GaAs at short pulse excitation. Optical Materials, 1995, 4, pp.227-232. ⟨10.1016/0925-3467(94)00064-6⟩. ⟨hal-00686033⟩