Characterization of a photorefractive rhodium doped barium titanate at 1.06 μm

We characterize Rh:BaTiO 3 by cw two-beam coupling experiments at 1.06 μm. We demonstrate that all our measurements are well described by a single-carrier, single-site model as soon as the incident intensity is large enough. The effective trap density is found to be equal to N eff = 6 × 10 16cm −3 a...

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Bibliographic Details
Published in:Optics communications 1997-02, Vol.135 (1), p.133-137
Main Authors: Huot, N, Jonathan, J.M.C, Pauliat, G, Rytz, D, Roosen, G
Format: Article
Language:English
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Summary:We characterize Rh:BaTiO 3 by cw two-beam coupling experiments at 1.06 μm. We demonstrate that all our measurements are well described by a single-carrier, single-site model as soon as the incident intensity is large enough. The effective trap density is found to be equal to N eff = 6 × 10 16cm −3 and the maximum measured gain is 23 cm −1. At 20 W cm −2 with a measured absorption of 0.15 cm −1, the time constant is 75 s.
ISSN:0030-4018
1873-0310
DOI:10.1016/S0030-4018(96)00636-0