| KNSBN:V晶体材料制备及光诱导吸收研究 |
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| 引用本文： | 张曰理,李辉遒,阳生红,莫党. KNSBN:V晶体材料制备及光诱导吸收研究[J]. 功能材料, 2000, 31(4): 423-425 |
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| 作者姓名： | 张曰理 李辉遒 阳生红 莫党 |
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| 作者单位： | 中山大学凝聚态所,物理系,广东,广州,510275 |
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| 基金项目： | 广东省自然科学基金!（980364） |
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| 摘 要： | 成功地生长、制备出了一系列含不同掺钒浓度的钾钠铌酸锶钡（ＫＮＳＢＮ：Ｖ）晶体样品。测量了在不同光强、光偏振和掺钒浓度下ＫＮＳＢＮ晶体的光诱导吸收变化。实验结果显示，ＫＮＳＢＮ：Ｖ晶体存在较强的光诱导吸收，且其光诱导吸收变化明显依赖于泵浦束光强，探测束光偏振和晶体的掺钒量，对于探测束光偏振平行和垂直于ｃ轴的情况其值分别可达０．５５和０．２２ｃｍ＾－１。对实验结果进行了解释。
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| 关 键 词： | 光折变材料 钾钠铌酸锶钡 光诱导吸收 |
| 文章编号： | 1001－9731(2000)04－0423－03 |
| 修稿时间： | 1999-04-05 |
Preparation and Light-Induced Absorption of KNSBN:V Crystal Materials |
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| ZHANG Yueli,LI Huiqiu,YANG Shenghong,MO Dang. Preparation and Light-Induced Absorption of KNSBN:V Crystal Materials[J]. Journal of Functional Materials, 2000, 31(4): 423-425 |
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| Authors: | ZHANG Yueli LI Huiqiu YANG Shenghong MO Dang |
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| Affiliation: | ZHANG Yueli,LI Huiqiu,LI Huiqiu,MO Dang(Physics Department,Zhongshan University,Guangzhou,510275,China) |
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| Abstract: | We have successfully.grown and prepared KNSBN crystal samples with different V concentrations in our experiment. Measurements of light-induced absorption changes in KNSBN: V crystals were carried out for different intensities. polarization and V concentrations. We find that the light- induced absorption change depends on the intensity of the pump light beam, polarization of the probe light beam and V concentrations. We got variation as high as 0. 55 and 0. 22cm-1 in the light-induced absorption coefficient for the extraordinary and ordinary probe beams, respectively. The results were interpreted in terms of a two- center charge transport model. |
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| Keywords: | phtoorefractive materials KNSBN lightinduced adsorption |
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