The 85th JSAP Autumn Meeting 2024
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Session Details

Oral presentation3 Optics and Photonics : 3.6 Laser processing

[18p-A25-1~16]3.6 Laser processing

Wed. Sep 18, 2024 1:30 PM - 5:45 PM JST
Wed. Sep 18, 2024 4:30 AM - 8:45 AM UTC
A25 (TOKI MESSE 2F)
Daisuke Nakamura(Kyushu Univ.), Yusuke Ito(Univ. Tokyo)
1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[18p-A25-1][The 56th Young Scientist Presentation Award Speech] Nonlinear focusing properties of ultrashort pulse laser above the air ionization threshold

〇Itsuki Nishibata1, Tomokazu Sano1 (1.Osaka Univ.)
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1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-2]Development of a Wide-Area Shield Nozzle and 3D Fluid Simulation Analysis

〇(M2)Masahiro Koba1, Toshifumi Kikuchi1, Rikuto Kokubo1, Hiroshi Ikenoue2, Daisuke Nakamura1 (1.Kyushu Univ., 2.Kochi Univ. of Tech.)
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2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-3]High speed control of machining laser with multi-dimension detection system and machine learning

〇Keiichiro Toyoshima1, Kaede Takeuchi1, Yurina Michine1, Hitoki Yoneda1 (1.UEC)
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2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-4]Preparation of carbon quantum dots by laser ablation in liquid and their properties

〇Taichi Okumura1, Hiroyuki Wada1 (1.Tokyo Inst. Tech)
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2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-5]Optimization of pattern irradiation conditions for laser ablation-induced crystallization

〇(M1)Norifumi Fujii1, Hozumi Takahashi1, Yoshiki Nakata2, Takahisa Matsuzaki1, Hiroshi Yoshikawa1 (1.Grad.Sch.Eng.Osaka Univ., 2.ILE Osaka Univ.)
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2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-6]Radiation transport model for underwater laser-induced breakdown spectroscopy considering blackbody emission and absorption

〇(M2)Masashi Shintani1, Yuko Yokoyama1, Naoya Nishi1, Sakka Tetsuo1 (1.Kyoto Univ.)
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3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-7]One-Step Fabrication of Two-layer Structure Composed of Graphene Quantum Dots (GQDs) and Conductive Structure by Laser Carbonization of PDMS

〇Kosuke Tsukada1, Mitsuhiro Terakawa1,2 (1.Grad. Sch. Keio Univ., 2.Keio Univ.)
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3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-8]Characterization of novel periodic surface nanostructures fabricated by GHz burst mode femtosecond laser pulses

〇Shota Kawabata1,2, Felix Sima1,3, Livia Sima4, Stefana Orobeti3,4, Kotaro Obata1, Mirai Hanzawa1,2, Shi Bai1, Kazunari Ozasa1, Godai Miyaji2, Koji Sugioka1 (1.RIKEN RAP, 2.Tokyo Univ. of Agri. and Tech., 3.CETAL-Nat. Inst. for Laser, Plasma and Rad. Phys., 4.Inst. of Biochem. of the Romanian Acad.)
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3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-9]Surface carbonization of S45C in lubricating oil by short-pulse laser irradiation

〇(M2)Yuya Nakamura1, Masato Yamanaka1, Yosiki Tanaka1, Naoki Yoshida2, Xiaoxu Liu1, Kazuo Higuchi1, Satoru Maegawa1, Fumihiro Itoigawa1, Shingo Ono1 (1.Nagoya Inst. of Tech., 2.NIDEK CO., LTD.)
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4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-10]Tungsten Microstructureing by Femtosecond Optical Vortex Laser Processing in Liquid

〇Haruki Kawaguchi1,2, Ryo Yasuhara1,2, Haotian Yang2, Reina Miyagawa1,3, Koji Sugioka4, Masato Ota1,2, Hiyori Uehara1,2 (1.NIFS, 2.SOKENDAI, 3.Nagoya Institute of Technology, 4.RIKEN RAP)
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4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-11]Pulse Duration Dependence of Electrical Properties of Ohmic Electrode on SiC by Ultrashort Pulsed Laser

〇Naoya Suto1, Hiroto Seki1, Takuya Kawakami1, Keisuke Takabayashi2,3, Eibon Tsuchiya2, Tsubasa Endo2, Yuusuke Takashima1, Kentaro Nagamatsu1, Yoshiki Naoi1, Makoto Yamaguchi3, Tatsuya Okada1, Yohei Kobayashi2, Takuro Tomita1 (1.Tokushima Univ., 2.ISSP Univ of Tokyo., 3.Akita Univ.)
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4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-12]Alloying of Ni/Cu/Sn metal thin films by ultrashort pulse laser irradiation

〇(M1)Koji Nakagawa1, Hiroto Seki1, Keisuke Takabayashi2,3, Tsubasa Endo2, Eibon Tsuchiya2, Makoto Yamaguchi3, Tatsuya Okada1, Yohei Kobayashi2, Takuro Tomita1 (1.Tokushima Univ., 2.ISSP Univ. of Tokyo., 3.Akita Univ.)
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4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-13]Electric characteristics modification of Ni/Au electrode on p-type gallium nitride by subpicosecond laser irradiation

〇Kaito Fukuda1, Naoya Suto1, Hiroto Seki1, Takuya Kawakami1, Tsubasa Endo2, Keisuke Takabayashi2,3, Yohei Kobayashi2, Makoto yamaguchi3, Kentaro Nagamatsu1, Yuusuke Takashima1, Yoshiki Naoi1, Takuro Tomita1 (1.Tokushima Univ., 2.ISSP Univ of Tokyo., 3.Akita univ.)
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5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-14]Precision femtosecond laser processing by modulating pulse energy

〇Ryota Hasegawa1, Junya Hattori1, Tomohiro Fukui1, Naohiko Sugita1, Yusuke Ito1 (1.Univ. Tokyo)
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5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[18p-A25-15]Precision microprocessing of silica glass using a temporally shaped ultrafast laser

〇Guoqi Ren1, Huijie Sun1, Keiichi Nakagawa1, Naohiko Sugita1, Yusuke Ito1 (1.Univ. Tokyo)
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5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-16]Effect of plume on welding in pure copper welding using a 1.5 kW blue diode laser

〇(M2C)Mao Sudo1, Shumpei Fujio1, Kazuki Koda2, Hideaki Shirai2, Keisuke Takenaka3, Masami Mizutani3, Yuji Sato3, Masahiro Tsukamoto3 (1.Grad. Sch., Osaka Univ., 2.DENSO CO, 3.JWRI., Osaka Univ.)
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