| SiO2-GeO2薄膜电场极化后倍频效率与极化电压的超平方关系 |
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| 引用本文： | 徐志凌,刘丽英,杨 鹏,侯占佳,徐 雷,王文澄.SiO2-GeO2薄膜电场极化后倍频效率与极化电压的超平方关系[J].物理学报,1999,48(11):2076-2081. |
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| 作者姓名： | 徐志凌 刘丽英 杨 鹏 侯占佳 徐 雷 王文澄 |
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| 作者单位： | 复旦大学三束材料改性国家重点实验室，物理系，上海 200433 |
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| 基金项目： | 国家自然科学基金(批准号：19774018)和国家攀登计划资助的课题. |
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| 摘 要： | 采用溶胶-凝胶方法制备了SiO2-GeO2薄膜.通过对薄膜样品平板电极极化和电晕极化后二次谐波产生信号的研究，发现样品中有效偶极子数目随平板电极极化电压的增加而逐渐增大.提出了有效偶极子释放模型，解释了样品倍频效率与极化电压之间的超平方关系.
关键词：
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| 关 键 词： | 薄膜 氧化硅 氧化锗 倍频效率 极化电压 |
| 收稿时间： | 1999-01-25 |
THE SUPER-QUADRATIC RELATION BETWEEN FREQUENCY DOUBLING EFFICIENCY AND POLING VOLTAGE IN SiO2-GeO2 THIN FILMS |
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| XU ZHI-LING,LIU LI-YING,YANG PENG,HOU ZHAN-JIA,XU LEI and WANG WEN-CHENG.THE SUPER-QUADRATIC RELATION BETWEEN FREQUENCY DOUBLING EFFICIENCY AND POLING VOLTAGE IN SiO2-GeO2 THIN FILMS[J].Acta Physica Sinica,1999,48(11):2076-2081. |
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| Authors: | XU ZHI-LING LIU LI-YING YANG PENG HOU ZHAN-JIA XU LEI and WANG WEN-CHENG |
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| Abstract: | Sol-gel method was used to prepare SiO2-GeO2 films. By investigating the second-harmonic generation signal of the film after parallel plate poling and corona poling, it was found that the number of effective dipoles in the sample increased with the plate poling voltage. A model of the release of effective dipoles was proposed to explain the super-quadratic relation between the second-order nonlinearity and the poling voltage. |
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