| 高损伤阈值矩形石英闪耀光栅的设计分析 |
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| 引用本文： | 赵华君,袁代蓉.高损伤阈值矩形石英闪耀光栅的设计分析[J].强激光与粒子束,2011,23(1). |
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| 作者姓名： | 赵华君 袁代蓉 |
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| 作者单位： | 重庆文理学院 电子电气工程学院, 重庆 402160 |
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| 基金项目： | 重庆教育委员会资助项目，重庆市科委自然科学基金 |
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| 摘 要： | 采用模态法分析了矩形亚波长石英闪耀光栅的设计原理，给出了1.06 μm工作波长的矩形亚波长石英闪耀光栅的设计示例。研究表明，要设计性能优良的-1级透射闪耀光栅，应使0/1阶传输模的累积相位差为π的奇数倍。设计的透射闪耀光栅能够使TM偏振光和TE偏振光获得近100%的-1级衍射效率，且具有较大的加工容差，较宽的入射波长和入射角变化适应范围。
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| 关 键 词： | 闪耀光栅 石英 模态法 严格耦合波法 |
| 收稿时间： | 1900-01-01; |
Design of fused-silica blazed grating with high power damage threshold |
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| Zhao Huajun,Yuan Dairong.Design of fused-silica blazed grating with high power damage threshold[J].High Power Laser and Particle Beams,2011,23(1). |
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| Authors: | Zhao Huajun Yuan Dairong |
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| Institution: | Department of Electronic and Electrical Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China |
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| Abstract: | The design of fused silica transmission blazed grating based on modal method is presented under Littrow mounting. A -1st transmitted order blazed grating is designed at the wavelength of 1.06 μm. The first two modes (i.e. mode 0 and mode 1) propagate through the grating with different effective indices and couple out at the grating-substrate interface. And a high diffraction efficiency of -1st transmitted order can be achieved if the first two modes have a phase difference of odd multiple of π. The diffraction performance of the blazed grating is analyzed by the rigorous coupled-wave analysis theory. The design of blazed grating based on modal method matches the analysis perfectly. |
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| Keywords: | blazed grating fused-silica modal method rigorous coupled-wave analysis |
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