首页|Femtosecond laser induced index and relief gratings in polymer films
Femtosecond laser induced index and relief gratings in polymer films
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A true single-step process suitable for fabrication of micro-periodic structure in polymer films by two photon initiated photopolymerization and laser ablation is presented. By the right choice of the irradiation energy, the irradiated zone is modified or ablated in the 1.44-μm-thick film. The mechanism of grating generation and the potential application of the gratings in integrated optics are discussed.
Yi Dong、Xiaoqiang Yu、Yuming Sun、Yufei Li、Xueyuan Hou、Xian Zhang
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Department of Optics, Shandong University, Ji'nan 250100
State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100
School of Materials Science and Engineering, Shandong Institute of Light Industry, Ji'nan 250100
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