[18p-A25-1~16] 3.6 Laser processing | The 85th JSAP Autumn Meeting 2024

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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)

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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 Terakawa^1,2 (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 Kawabata^1,2, Felix Sima^1,3, Livia Sima⁴, Stefana Orobeti^3,4, Kotaro Obata¹, Mirai Hanzawa^1,2, 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 Kawaguchi^1,2, Ryo Yasuhara^1,2, Haotian Yang², Reina Miyagawa^1,3, Koji Sugioka⁴, Masato Ota^1,2, Hiyori Uehara^1,2 (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 Takabayashi^2,3, 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 Takabayashi^2,3, 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 Takabayashi^2,3, 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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