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铌酸锶钡光折变表面电磁波实验
Experiment on PR SEW of SBN crystal
【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.
【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.
【关键词】 表面电磁波;
扩散和漂移机制;
SBN;
【Key words】 Photorefractive surface electromagnetic wave (PR SEW); drift and diffusion mechanism; SBN;
【Key words】 Photorefractive surface electromagnetic wave (PR SEW); drift and diffusion mechanism; SBN;
【基金】 国家自然科学基金(批准号:60208002)资助的课题.~~
- 【文献出处】 物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,2005年10期
- 【分类号】O441.4
- 【被引频次】11
- 【下载频次】159