[18a-N304-1~8] 3.7 Laser processing

[18a-N304-2] Development of Laser-Induced Dot Transfer Technique Using Interference Pattern

〇Yoshiki Nakata¹, Yuki Kosaka¹, Eiki Hayashi¹, Koji Tsubakimoto¹, Hiroyuki Shiraga¹, Noriaki Miyanaga², Narazaki Aiko³, Tatsuya Shoji⁴, Yasuyuki Tsuboi⁴ (1.Osaka Univ., 2.Inst. Las. Eng., 3.AIST, 4.Osaka City Univ.)

Keywords:laser-induced dot transfer, femtosecond laser, nanodot

Metallic nanostructures have a variety of applications such as sensitive detection using surface-enhanced Raman scattering (SERS) and a catalyst. In this study, combined interference pattern laser processing technique and laser-induced dot transfer (LIDT) technique, as which we named “interference pattern LIDT”. We deposited Au nanodots in lattice in a single shot successfully. The unit structure was single, homo (layered) or nanogap (<20 nm). The SERS activity was confirmed.