Photorefractive wave mixing in undoped liquid encapsulated Czochralski GaAs at 1.5 μm: Validation of photorefractive modeling

Publisher Website
Google Scholar
Abstract
International audienceWe present photorefractive measurements in undoped GaAs performed at 1.06 pm, 1.32 ,um, and at 1.55 ,um. Using concentrations of EL2 0/+ that we determined through optical absorption and electron paramagnetic resonance measurements in the same sample, we show that a single defect model with an electron-hole competition quantitatively explains our results of photorefractive wave mixing