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Photorefractive wave mixing in undoped LEC GaAs at 1.5µm : validation of photorefractive modeling

Abstract : We 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.
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Philippe Delaye, Louis-Anne de Montmorillon, H.J. von Bardeleben, Gérald Roosen. Photorefractive wave mixing in undoped LEC GaAs at 1.5µm : validation of photorefractive modeling. Applied Physics Letters, American Institute of Physics, 1994, 64 (20), pp.2640-2642. ⟨10.1063/1.111477⟩. ⟨hal-00673568⟩

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