| 磁性液体复合体在外磁场中的赝双折射效应和二向色性 |
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| 引用本文： | 蒉纪圣,苗永智.磁性液体复合体在外磁场中的赝双折射效应和二向色性[J].光学学报,1993,13(6):00-505. |
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| 作者姓名： | 蒉纪圣 苗永智 |
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| 作者单位： | 南京大学固体微结构物理实验室 南京210008
(蒉纪圣，都有为，胡济通，钟伟，陆怀先，高学奎，史莹冰，吕宁)，南京大学物理系 南京210008
(苗永智)，南京大学物理系 南京210008(马光群) |
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| 基金项目： | 国家自然科学基金资助;磁学国家实验室部分资助 |
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| 摘 要： | 研究了由非磁性聚苯乙烯颗粒弥散于煤油基Fe_3O_4磁性液体中制备而成的磁性液体复合体.该复合体双折射效应和线二向色性随外磁场变化.在相同的磁场条件下,复合体的双折射效应较纯磁性液体有减弱而二向色性较后者有所增强.文中采用一简化模型对结果给出了解释.
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| 关 键 词： | 磁性液体 双折射 二向色性 磁场 |
| 收稿时间： | 1992/3/2 |
Pseudo-birefringence and dichroism of ferrofluid composites in applied magnetic field |
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| KUI Jisheng DU Youwei HU Jitong ZHONG Wei LU Huaixian,GAO Xuekui SHI Yingbing LU Ning.Pseudo-birefringence and dichroism of ferrofluid composites in applied magnetic field[J].Acta Optica Sinica,1993,13(6):00-505. |
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| Authors: | KUI Jisheng DU Youwei HU Jitong ZHONG Wei LU Huaixian GAO Xuekui SHI Yingbing LU Ning |
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| Abstract: | Ferrofluid composites consist of non-magnetic polystyene particles dispersed in a kerosence-based ferrofluid. Their birefringence and dichroism in applied magnetic field were measured. In experiments it was found that under the condition of the same magnetic field, 1) the birefringence of ferrofluid composites is smaller than that of pure ferrofluid; 2) the linear dichroism of the composite samples is stronger than that of the pure ones. With a simple theoretical model, the results are explained. |
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| Keywords: | ferrofluid composites birefringence dichroism |
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