Control of periods of femtosecond laser induced periodic nanostructures on pure titanium surface.

Naoki Shinohara; Yuji Sato; Masahiro Tsukamoto

Presentation information

Symposium (Oral)

Symposium » Research progress on laser-induced periodic surface structure ~What has been revealed? How about the technology outlook?~

[13p-B410-1~10] Research progress on laser-induced periodic surface structure ~What has been revealed? How about the technology outlook?~

Fri. Mar 13, 2020 1:30 PM - 6:00 PM B410 (2-410)

Yasuhiko Shimotsuma(Kyoto Univ.), Masaaki Sakakura(Univ. of Southampton)

3:45 PM - 4:00 PM

△ [13p-B410-6] Control of periods of femtosecond laser induced periodic nanostructures on pure titanium surface.

〇Naoki Shinohara¹, Yuji Sato², Masahiro Tsukamoto² (1.Graduated school of Osaka Univ., 2.JWRI Osaka Univ.)

Keywords:Femtosecond Laser, Periodic nanostructures, Pure titunium

We tried to form periodic nanostructures on titanium plate surface with the polymer adhered by femtosecond laser irradiation. At this time, FEP, PLA, PS, and PMMA were used as polymers having different dielectric constants. Under the atmosphere, periodic nanostructures with a period of 630 nm was formed on the titanium surface. On the other hand, when FEP, PLA, PS, and PMMA were brought into close contact, the periods were 506, 437, 432, and 410 nm. In conclusion, it was found that the period depends on the dielectric constant of the surface.