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首页> 外文期刊>Optics Letters >Photorefractive properties of iron-doped stoichiometric lithium niobate
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Photorefractive properties of iron-doped stoichiometric lithium niobate

机译:掺铁化学计量铌酸锂的光折变性能

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摘要

The photorefractive properties of stoichiometric LiNbO3 crystals with a small number of defect densities grown by the double-crucible Czockralski method are investigated and compared with the defect densities of commercially available congruent Fe-doped LiNbO3 crystals. Two-wave-mixing experiments show that novel stoichiometric crystals exhibit larger photorefractive gain;and considerably faster response times than congruent ones. The results indicate that the nonstoichiometry defect control of photorefractive crystals is of key importance for the improvement of their properties. (C) 1997 Optical Society of America.
机译:研究了通过双坩埚Czockralski方法生长的具有少量缺陷密度的化学计量LiNbO3晶体的光折变特性,并将其与市售的全铁掺杂LiNbO3晶体的缺陷密度进行了比较。两波混频实验表明,新型化学计量晶体显示出更大的光折变增益;并且比全同晶体具有更快的响应时间。结果表明光折变晶体的非化学计量缺陷控制对于改善其性能至关重要。 (C)1997年美国眼镜学会。

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