31 October 2016 Design and analysis of highly efficient reflective 1×3 splitting grating with triangular structure
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Abstract
A highly efficient reflective 1×3 splitting grating with triangular structure operating in 1.064μm wavelength under normal incidence for TE polarization is designed. The schematic of the grating has four layers. The first layer with SiO2 is triangular structure. Rigorous coupled wave analysis (RCWA) and Simulated Annealing (SA) algorithm are adopted to design and analyze the properties. The theoretical efficiency is nearly about 99%. The bigger error tolerance is also analyzed by rigorous coupled wave analysis. These reflective gratings as splitters should be useful optical elements in the field of high-power laser as well as other reflective applications.
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Jin Wang, Jin Wang, Changhe Zhou, Changhe Zhou, Jianyong Ma, Jianyong Ma, Yonghong Zong, Yonghong Zong, Yancong Lu, Yancong Lu, Wei Jia, Wei Jia, } "Design and analysis of highly efficient reflective 1×3 splitting grating with triangular structure", Proc. SPIE 10022, Holography, Diffractive Optics, and Applications VII, 1002215 (31 October 2016); doi: 10.1117/12.2245837; https://doi.org/10.1117/12.2245837
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