[14a-PB4-1~15] 3.7 Laser processing

[14a-PB4-2] Nanosecond laser surface oxidation treatment of Cu micropatterns fabricated using femtosecond laser reduction of CuO nanoparticles

〇Kyouhei Yoshidomi¹, Susumu Nakamura², Mizue Mizoshiri¹ (1.Nagaoka Univ. of Tech., 2.NIT, Nagaoka College)

Keywords:femtosecond laser, surface oxidation treatment

The surface of Cu micropatterns which were fabricated by femtosecond laser reductive sintering of CuO nanoparticles were thermally oxidized by green nanosecond laser pulses in air for sensor applications. Cu₂O were generated on only the surfaces without melting of the micropatterns.