Design of High-Efficiency Diffraction Gratings Based on Rigorous Coupled-Wave Analysis for 800nm Wavelength |
| |
Authors: | KONG Wei-Jin YUN Mao-Jin LIU Shi-Jie JIN Yun-Xia FAN Zheng-Xiu SHAO Jian-Da |
| |
Institution: | College of Physics Science, Qingdao University, Qingdao 266071Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
| |
Abstract: | We report on the design of a high diffraction efficiency multi-layer dielectric grating with wide incident angle and broad bandwidth for 800nm. The optimized grating can achieve >95% diffraction efficiency in the first order at an incident angle of 5° from Littrow and a wavelength from 770nm to 830nm, with peak diffraction efficiency of >99.5% at 800nm. The electric field distribution of the optimized multi-layer dielectric grating within the gratings ridge is 1.3 times enhancement of the incidence light, which presentspotential high laser resistance ability. Because of its high-efficiency, wide incident, broad bandwidth and potential high resistance ability, the multi-layer dielectric grating should have practical application in Ti:sapphire laser systems. |
| |
Keywords: | 42 40 Eq 42 40 Lx 78 20 -e |
本文献已被 维普 等数据库收录! |
| 点击此处可从《中国物理快报》浏览原始摘要信息 |
| 点击此处可从《中国物理快报》下载免费的PDF全文 |
|