[18p-S4_201-1~11] 3.6 Laser processing

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-S4_201-1] Investigation of direct writing characteristics by femtosecond laser photothermal precipitation from glyoxylic acid copper and silver mixed complex solution

〇(M1)Taiga Sasahara¹, Kotaro Kibe¹, Shoto Mashiko¹, Tomoji Oishi², Mizue Mizoshiri¹ (1.Nagaoka Univ. of Tech., 2.Shibaura Inst. of Tech.)

Keywords:

femtosecond laser,thermochemical reduction,Cu-Ag alloy

Femtosecond laser-induced thermochemical reduction deposition using multiphoton excitation enables direct writing of non-noble metals, but fine control has been difficult because the absorption process shifts to single-photon absorption due to the deposited metal. In this study, with the aim of realizing fine writing, we evaluated the metal deposition characteristics from a mixed solution of glyoxylic acid Cu and Ag complexes. By scanning the mixed complex solution with a femtosecond laser, we succeeded in forming fine and uniform linear patterns that could not be obtained with each single complex.