14 July 2015 Effects of groove structure on grating properties
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In this paper, metallic pulse compression gratings (MPCG) with three kinds of grating structures are manufactured. The diffraction efficiency and bandwidth of samples are measured and it can be found that the different grating structure has different diffraction efficiency and bandwidth. Laser damage tests of samples are implemented by an 800±30 nm laser at pulse duration of 31 fs and it can be also found that the different grating structure has different laser-induced damage threshold. Experimental measurements illustrate that the grating structure has a great influence on bandwidth, diffraction efficiency and damage threshold. The typical damage morphologies of MPCG reveal that the damage is induced by absorption and thermal stress.
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Haopeng Huang, Haopeng Huang, Fanyu Kong, Fanyu Kong, Hu Wang, Hu Wang, Yunxia Jin, Yunxia Jin, Hong Zhang, Hong Zhang, Yun Cui, Yun Cui, Kui Yi, Kui Yi, Jianda Shao, Jianda Shao, } "Effects of groove structure on grating properties", Proc. SPIE 9532, Pacific Rim Laser Damage 2015: Optical Materials for High-Power Lasers, 95320D (14 July 2015); doi: 10.1117/12.2186054; https://doi.org/10.1117/12.2186054

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