Narrow titanium oxide nanowires induced by femtosecond laser pulses on a titanium surface

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• 作者：Hui Li^a ; Xian-Feng Li^a ; Cheng-Yun Zhang^b ; Shao-Long Tie^c ; Sheng Lan^a ; ^{slan@scnu.edu.cn}
• 关键词：Nanostructure fabrication ; Laser materials processing ; Subwavelength structures ; Nanostructures
• 刊名：Applied Surface Science
• 出版年：2017
• 出版时间：28 February 2017
• 年：2017
• 卷：396
• 期：Complete
• 页码：221-225
• 全文大小：1963 K
• 卷排序：396

文摘

Titanium oxide nanowires with a feature width as narrow as ∼20 nm were induced on a titanium surface by using femtosecond laser pulses at 400 nm. An evolution of the surface structure from a high spatial frequency laser-induced periodic structure parallel to the laser polarization to a low spatial frequency one perpendicular to the laser polarization was observed with increasing irradiation pulse number. The formation of the titanium oxide nanowires was confirmed by the energy dispersive spectroscopy measurements and the evolution of the surface structure was successfully interpreted by using the efficacy factor theory.