| 光生伏打LiNbO_3:Fe晶体从自散焦到等效“自聚焦”的动态转换 |
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| 引用本文： | 江瑛,刘思敏,温海东,张心正,郭儒,陈晓虎,许京军,张光寅.光生伏打LiNbO_3:Fe晶体从自散焦到等效“自聚焦”的动态转换[J].物理学报,2001,50(3). |
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| 作者姓名： | 江瑛 刘思敏 温海东 张心正 郭儒 陈晓虎 许京军 张光寅 |
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| 作者单位： | 南开大学物理学院, |
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| 基金项目： | 国家自然科学基金!(批准号 :6 96 780 18，6 98780 0 9和 6 0 0 780 13)资助的课题 |
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| 摘 要： | 实验研究了在一定条件下LiNbO3:Fe晶体中从自散焦到等效“自聚焦”转换的动态行为 ,提出了出现自聚焦的物理机理为双相位共轭的法布里 珀罗干涉腔中的多光束干涉与光折变效应的共同结果 .该效应有希望在光折变自散焦介质中形成亮空间孤子
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| 关 键 词： | 自散焦 自聚焦 光折变 |
DYNAMIC CONVERSION FROM SELF-DEFOCUSING TO EQUIVALENT “SELF-FOCUSING” IN PHOTOVOLTAIC LiNbO3:Fe CRYSTALS |
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| JIANG YING,Liu Si-min,WEN HAI-DONG,ZHANG Xin-Zheng,GUO Ru,CHEN Xiao-hu,XU JING-JUN,ZHANG GUANG-YIN.DYNAMIC CONVERSION FROM SELF-DEFOCUSING TO EQUIVALENT “SELF-FOCUSING” IN PHOTOVOLTAIC LiNbO3:Fe CRYSTALS[J].Acta Physica Sinica,2001,50(3). |
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| Authors: | JIANG YING Liu Si-min WEN HAI-DONG ZHANG Xin-Zheng GUO Ru CHEN Xiao-hu XU JING-JUN ZHANG GUANG-YIN |
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| Abstract: | We experimentally studied the dynamic behavior of conversion from self-defocusing to equivalent “self-focusing” in LiNbO3:Fe crystal under certain experiment conditions.Its physical mechanism is the consequence of both the double Phase conjugate Fabry-Perot interference cavity and photorefractive effect.It is possible to form bright spatial solitons in self-defocusing medium by the effect of dynamic conversion. |
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| Keywords: | self\|defocusing self\|focusing photorefraction |
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