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28 January 2005 Comparison of two-color holography between congruent and near-stoichiometric LiNbO3:Fe at low intensities
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Abstract
We have studied theoretically the steady-state nonvolatile two-step, two-color holographic recording performance for both the congruent and the near-stoichiometric LiNbO3:Fe based on the two-center model (the deep-trap and the shallow-trap centers are Fe2+/Fe3+ and NbLi4+/NbLi5+, respectively). We compare the amplitudes of the total space-charge fields and the recording sensitivities between the congruent and the near-stoichiometric LiNbO3:Fe. The results show that the amplitudes of the total space-charge fields in near-stoichiometric LiNbO3:Fe are larger than that of congruent ones by at least one order of magnitude, while the recording sensitivities of the near-stoichiometric LiNbO3:Fe are confirmed theoretically to be around two-order in magnitude higher than that of the congruent ones with the same experimental conditions at low intensity region.
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Yan Shen, Guoquan Zhang, Bo Fu, Qingjun Xu, and Jingjun Xu "Comparison of two-color holography between congruent and near-stoichiometric LiNbO3:Fe at low intensities", Proc. SPIE 5646, Nonlinear Optical Phenomena and Applications, (28 January 2005); https://doi.org/10.1117/12.570348
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