Dislocation density-dependent photorefractive effect in (001)-cut GaAs.
We present studies of the photorefractive effect in nonphotorefractive orientations of liquid-encapsulated Czochralski-grown GaAs crystals. Picosecond diffraction experiments conducted in different samples show that a forbidden photorefractive signal correlates well with dislocation density, which points out that the effect arises from strain fields and growth defects.
Jarasiunas
K
K
Vaitkus
J
J
Delaye
P
P
Roosen
G
G