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铌酸锶钡光折变表面电磁波实验
引用本文:张天浩,路彦珍,康慧珍,杨大鹏,郑建亚,方哲宇,楼慈波,杨嘉,杨会战,尹美荣.铌酸锶钡光折变表面电磁波实验[J].物理学报,2005,54(10):4688-4691.
作者姓名:张天浩  路彦珍  康慧珍  杨大鹏  郑建亚  方哲宇  楼慈波  杨嘉  杨会战  尹美荣
作者单位:南开大学物理科学学院光子学中心,弱光非线性光子学材料先进技术及设备教育部实验室,天津市信息光子材料与技术重点实验室,天津 300071
基金项目:国家自然科学基金(批准号:60208002)资助的课题.
摘    要:在实验中观察到扩散和漂移机理下在光折变晶体铌酸锶钡(SBN)与空气的界面形成的光折变表面电磁波. 这种表面电磁波形成的条件是:入射光束与界面成55°角入射,信号光与背景光比值越大越有利于形成表面电磁波,外加电场越大表面电磁波就越强. 关键词: 表面电磁波 扩散和漂移机制 SBN

关 键 词:表面电磁波  扩散和漂移机制  SBN
文章编号:1000-32910/2005/54(10)/4688-04
收稿时间:10 11 2004 12:00AM
修稿时间:2004-10-112005-03-15

Experiment on PR SEW of SBN crystal
Zhang Tian-Hao,Lu Yan-Zhen,Kang Hui-Zhen,Yang Da-Peng,Zheng Jian-Ya,Fang Zhe-Yu,Lou Ci-Bo,Yang Jia,Yang Hui-Zhan,Yin Mei-Rong.Experiment on PR SEW of SBN crystal[J].Acta Physica Sinica,2005,54(10):4688-4691.
Authors:Zhang Tian-Hao  Lu Yan-Zhen  Kang Hui-Zhen  Yang Da-Peng  Zheng Jian-Ya  Fang Zhe-Yu  Lou Ci-Bo  Yang Jia  Yang Hui-Zhan  Yin Mei-Rong
Abstract:Photorefractive surface electromagnetic wave (PR SEW) at the interface between SBN crystal and air based on drift and diffusion mechanism was observed experimentally for the first time. PR SEW can be formed when laser beam was incident at an angle of 55° in proper ratio of signal beam to background beam, and the intensity of PR SEW increases along with the increasing of additional electric field.
Keywords:Photorefractive surface electromagnetic wave (PR SEW)  drift and diffusion mechanism  SBN
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