| 聚合物薄膜厚度和极化工艺对二次谐波的影响 |
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| 引用本文： | 吕仕智,曹庄琪,王峰,沈启舜,杨艳芳.聚合物薄膜厚度和极化工艺对二次谐波的影响[J].光电工程,2004,31(4):28-31. |
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| 作者姓名： | 吕仕智 曹庄琪 王峰 沈启舜 杨艳芳 |
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| 作者单位： | 上海交通大学物理系,上海,200240;上海交通大学物理系,上海,200240;上海交通大学物理系,上海,200240;上海交通大学物理系,上海,200240;上海交通大学物理系,上海,200240 |
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| 基金项目： | 国家自然科学基金项目(60237010)，上海市科委光科技项目(012261021)，上海市应用材料和发展基金项目(0111) |
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| 摘 要： | 使用马克条纹和实时极化方法对掺杂型聚合物( DR1/PMMA )薄膜及其极化工艺进行了深入的研究。实验表明,在一定温度下,如果聚合物薄膜预烘时间不足,则极化时二次谐波强度很弱,极化驰豫也很快;预烘时间过长对二次谐波强度变化没有明显影响。也证实薄膜厚度在相干长度下,二次谐波强度最大。
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| 关 键 词： | 聚合物薄膜 薄膜厚度 极化条件 二次谐波振荡 |
| 文章编号： | 1003-501X(2004)04-0028-04 |
| 收稿时间： | 2003/8/18 |
| 修稿时间： | 2003年8月18日 |
Influence of polymer film thickness and polarization process on secondary harmonic generation |
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| Shi-zhi,CAO Zhuang-qi,WANG Feng,SHEN Qi-shun,YANG Yan-fang.Influence of polymer film thickness and polarization process on secondary harmonic generation[J].Opto-Electronic Engineering,2004,31(4):28-31. |
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| Authors: | Shi-zhi CAO Zhuang-qi WANG Feng SHEN Qi-shun YANG Yan-fang |
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| Abstract: | The doped polymer films and their polarization process are indepth studied by using Maker fringe and real-time polarization method. The experiments show that under the given conditions if pre-baking time of polymer film is insufficient, then the SHG (Secondary Harmonic Generation) intensity is very weak in polarization, the polarization relaxation is very fast and too long pre-baking time has no obvious influence on the SHG intensity. The experiments also demonstrate that the SHG intensity for the film thickness under coherent length is the biggest. |
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| Keywords: | Polymer film Film thickness Polarization conditions Secondary harmonic generation |
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