| 对称面形光栅TE模的衍射特性 |
| |
| 引用本文： | 王鹏 徐毓光. 对称面形光栅TE模的衍射特性[J]. 光子学报, 1998, 27(11): 1013-1018 |
| |
| 作者姓名： | 王鹏 徐毓光 |
| |
| 作者单位： | 中国科学院上海光学精密机械研究所 |
| |
| 摘 要： | 本文采用耦合波方法计算了对称面形光栅的衍射效率,分析了光栅截面面形为正弦、三角形、矩形、梯形光栅衍射效率与光栅周期、沟槽深度的关系,计算了光栅的峰值衍射效率。理论计算表明:合理地选择光栅周期、沟槽深度,对称面形光栅都可以达到很高衍射效率,接近100%;光栅的峰值衍射效率基本出现在Bragg衍射且光栅的周期等于衍射波长时。
|
| 关 键 词： | 耦合波理论 光栅周期 衍射效率 光栅面形 沟槽深度 |
| 收稿时间： | 1998-07-14 |
TE MODE DIFFRACTION CHARACTERISTICS OF SYMMETRIC PROFILE GRATINGS |
| |
| Wang Peng,Xu Yuguang,Yu Qinyue. TE MODE DIFFRACTION CHARACTERISTICS OF SYMMETRIC PROFILE GRATINGS[J]. Acta Photonica Sinica, 1998, 27(11): 1013-1018 |
| |
| Authors: | Wang Peng Xu Yuguang Yu Qinyue |
| |
| Affiliation: | Wang Peng,Xu Yuguang,Yu Qinyue Shanghai Institute of Optics and Fine Mechanics,The Chinese Academy of Sciences,Shanghai 201800 Received date:1998-07-14 |
| |
| Abstract: | The diffraction efficiency of symmetric profile grating is calculated basing on the couple wave method.The relations among diffraction efficiency,grating period and groove depth for sine,triangle,square and trapezoid profile are analyzed,at same time,the peak efficiency is presented.We can see that:the peak efficiency happens when the Bragg diffractin condition satisfied and the period equals to the wave length;once the grating period and groove depth are chosen properly,the diffraction efficiency near 100% for all symmetric profile can be achieved theoretically. |
| |
| Keywords: | Couple wave theory Grating period Diffraction efficiency Grating profile Groove depth |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《光子学报》浏览原始摘要信息 |
|
点击此处可从《光子学报》下载全文 |
|
