Formation of nanogratings in a transparent material with tunable ionization property by femtosecond laser irradiation

Fadhil A. Umran, Yang Liao, Mazin M. Elias, Koji Sugioka, Razvan Stoian, Guanghua Cheng, Ya Cheng

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20 引用 (Scopus)

摘要

Irradiation inside some transparent materials such as fused silica can induce nanograting structures at the focal area. Here, we investigate experimentally how the nanograting formation can be influenced by tuning the ionization property of the transparent material, which is achieved by irradiation inside a porous glass immersed in water doped with NaCl at variable concentrations. Our results show that the doping of NaCl not only reduces the threshold fluence of optical breakdown, but also leads to nanograting structures with shorter periods. These effects may be attributed to the enhanced photoionization in water doped with NaCl.

源语言英语
页(从-至)15259-15267
页数9
期刊Optics Express
21
13
DOI
出版状态已出版 - 1 7月 2013
已对外发布

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