| LB膜的各向异性与二次谐波超平方增长 |
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| 引用本文： | 韩奎 陆兴泽. LB膜的各向异性与二次谐波超平方增长[J]. 光学学报, 1997, 17(5): 33-538 |
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| 作者姓名： | 韩奎 陆兴泽 |
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| 作者单位： | 三束材料改性国家重点实验室与激光物理研究室复旦大学物理系 |
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| 摘 要： | 用偏振紫外－可见吸收及旋转样品二次谐波方法研究了半花菁／花生酸Ｙ型交替ＬＢ多层膜中由垂直浸渍过程诱导和层间相互作用增强的分子在基板平面内的定向排列，提出并证实了随层数增长的平面内附加偶极矩导致光学二次谐波强度随ＬＢ膜厚度的超平方增长关系。
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| 关 键 词： | LB膜 各向异性 半花菁 非线性光学 薄膜 |
| 收稿时间： | 1996-05-08 |
Azimuthal Anisotropy and Second Harmonic Generation Super Quadratic Enhancement in Optical Nonlinear LB Films |
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| Han Kui Lu Xingze Zhou Guangpeng Xu Jianhua Ma Shihong Wang Wencheng. Azimuthal Anisotropy and Second Harmonic Generation Super Quadratic Enhancement in Optical Nonlinear LB Films[J]. Acta Optica Sinica, 1997, 17(5): 33-538 |
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| Authors: | Han Kui Lu Xingze Zhou Guangpeng Xu Jianhua Ma Shihong Wang Wencheng |
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| Abstract: | The in plane molecular alignment in Y type Langmuir Blodgett multilayers of a hemicyanine dye (DAEP) interleaved with inert material arachidic acid (AA) due to dipping induction and interlayer interactions was demonstrated by polarized UV visible absorption and rotation angle second harmonic generation techniques. We gave the first direct evidence for a super quadratic enancement of the second harmonic intensities with increasing film thickness due to the additional in plane polarization. |
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| Keywords: | Langmuir Blodgett multilayer anisotropy second harmonic generation hemicyanine. |
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