Dr. Bo Fu Profile

Dr. Bo Fu

at Nankai Univ

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Proceedings Article | 28 January 2005 Paper

Comparison of two-color holography between congruent and near-stoichiometric LiNbO3:Fe at low intensities

Yan Shen, Guoquan Zhang, Bo Fu, Qingjun Xu, Jingjun Xu

Proceedings Volume 5646, (2005) https://doi.org/10.1117/12.570348

KEYWORDS: Iron, Lithium, Niobium, Holography, Crystals, Remote sensing, Polarons, Ions, Data storage

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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 Nb_Li⁴⁺/Nb_Li⁵⁺, 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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