Two-wave mixing in photorefractive BaTiO3:Rh at 1,06 µm in the nanosecond regime

Abstract : We present two-beam coupling experiments in the nanosecond regime at 1.06 mm, using photorefractive BaTiO3:Rh. The maximum observed exponential gain coefficient is 14.2 cm-1. No intensity-dependent electron-hole competition and no strong saturation of the photoionized charge carriers are observed for intensities of less than 20 MW cm-2. The energy required for recording the photorefractive grating is not significantly different in the nanosecond and the cw regimes.
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Nicolas Huot, Jean-Michel Jonathan, Daniel Rytz, Gérald Roosen. Two-wave mixing in photorefractive BaTiO3:Rh at 1,06 µm in the nanosecond regime. Optics Letters, Optical Society of America, 1997, 22, pp.976-978. ⟨ujm-00118160⟩

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