9 November 2016 Design and fabrication of transmission gratings with high diffraction efficiency for pulse compression
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Abstract
Fused silica transmission grating plays an important role in the ultra-short laser pulse compression system. Fused silica transmission grating have the advantages of high diffraction efficiency, high damage threshold, long life and no shelter. The design and fabrication of pulse compression grating are investigated theoretically and experimentally in this paper. Rigorous coupled wave theory is used for design transmission grating with trapezoidal structure. The trapezoidal structure has better diffraction efficiency than that of the rectangular structure. The deep-etched fused silica transmission grating (1250lp/mm) is fabricated by holographic recording and ion beam etching. The aperture of transmission grating is Φ65mm, and its thickness is 1mm.The absolute -1st diffraction efficiency is about to 98%(@808nm). Experimental results are coincident with the theoretical analysis.
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Chaoming Li, Chaoming Li, Xinrong Chen, Xinrong Chen, Lin Li, Lin Li, Xiaoyang Li, Xiaoyang Li, Hang Zha, Hang Zha, Jian Yu, Jian Yu, Zuyuan Hu, Zuyuan Hu, Wenlong Zou, Wenlong Zou, Jianhong Wu, Jianhong Wu, Zenghu Chang, Zenghu Chang, } "Design and fabrication of transmission gratings with high diffraction efficiency for pulse compression", Proc. SPIE 10016, High-Power Lasers and Applications VIII, 100161D (9 November 2016); doi: 10.1117/12.2244872; https://doi.org/10.1117/12.2244872
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