[11p-C213-1~9] 3.5 Ultrashort-pulse and high-intensity lasers | The 87th JSAP Autumn Meeting 2026

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Oral presentation3 Optics and Photonics : 3.5 Ultrashort-pulse and high-intensity lasers

[11p-C213-1~9]3.5 Ultrashort-pulse and high-intensity lasers

Fri. Sep 11, 2026 2:00 PM - 4:30 PM JST
Fri. Sep 11, 2026 5:00 AM - 7:30 AM UTC

C213 (Faculty of Engineering C Block)

Chair : Taro Sekikawa(Hokkaido University), Tomoya Mizuno(Anan College)

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[11p-C213-1]Construction of a High-Harmonic Soft X-ray Spectroscopy System and Evaluation of the Transmission Properties of Thin-Film Samples

〇Soudai Sakoda¹, Takahashi Ryunosuke¹, Ishii Nobuhisa², Wadati Hiroki¹ (1.Univ. of Hyogo, 2.QST KPSI)

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2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)

[11p-C213-2]Carrier-envelope phase retrieval from simulated high-harmonic spectra using a multilayer perceptron with feature-wise gating mechanism

〇Tomoya Mizuno¹, Takaya Ozaki², Minoru Komatsu^1,3 (1.Advan. Info. Education Center Anan College, 2.Depart. of Electrical and Electronic Engineer. Anan College, 3.Depart. of Creative Tech. Engineer. Anan College)

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2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)

[11p-C213-3]Sub-10fs Time-Resolved ARPES via EUV Pulse Characterization Using Momentum-Resolved Volkov Sidebands

〇Takuya Okamoto¹, Ryo Yoshioka^1,2, Kohei Nagai¹, Yasushi Shinohara¹, Yoji Kunihashi¹, Hiroki Hibino³, Ikufumi Katayama², Jun Takeda⁴, Haruki Sanada¹, Katsuya Oguri¹ (1.NTT BRL, 2.YNU, 3.K.G., 4.SIT)

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2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)English Presentation

[11p-C213-4]High-Power Multi-Plate Spectral Broadening of an Azimuthally Polarized Femtosecond Pulse

〇(D)Yunpeng Liu^1,2, Yu-Chieh Lin¹, Dianhong Dong¹, Yasuo Nabekawa¹, Eiji Takahashi^1,2 (1.RIKEN, 2.Saitama University)

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3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[11p-C213-5]Improvement of the pulse contrast in Fe:ZnSe mid-infrared chirped pulse amplifier

〇Daiki Okazaki¹, Yuri Kirita¹, Linpeng Yu², Xiangbao Bu¹, Anna Suzuki¹, Ryo Yasuhara², Shigeki Tokita¹ (1.ICR, Kyoto Univ., 2.NIFS)

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3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[11p-C213-6]Transition metal L-edge XANES spectroscopy using 1 keV attosecond pulses

〇Kaito Nishimiya¹, Eiji Takahashi¹ (1.RIKEN RAP)

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3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)English Presentation

[11p-C213-7]Extending Ultrafast Core-Level Spectroscopy Beyond the Oxygen K-Edge via a Tabletop Soft X-Ray Source

〇HungWei Sun¹, Nobuhisa Ishii¹, Momoko Maruyama¹, Ryuji Itakura¹ (1.QST KPSI)

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4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)English Presentation

[11p-C213-8]Observation of Conical-Intersection-Mediated Nonadiabatic Ring-Opening Dynamics in Thiophene

〇(D)Zhiyi Zhou¹, Satoi Wada², Yuto Arai¹, Kambara Ryuto³, Tetsuya Taketsugu^2,4, Taro Sekikawa¹ (1.Fac. of Eng., Hokkaido Univ, 2.WPI-ICReDD, Hokkaido Univ, 3.Grad. Sch. of Chem. Sci. Eng., Hokkaido Univ., 4.Fac. of Sci., Hokkaido Univ)

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4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[11p-C213-9]Cumulative effects in 100 kHz class high repetition rate high harmonic generation

〇(M2)Hotaka Yamada^1,2, Kohei Nagai¹, Takuya Okamoto¹, Yasushi Shinohara¹, Ikufumi Katayama², Jun Takeda³, Haruki Sanada¹, Katsuya Oguri¹ (1.NTT-BRL, 2.Yokohama Natl. Univ., 3.SIT research labs., Shibaura Inst. of Tech.)

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