The 73rd JSAP Spring Meeting 2026
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Session Details

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

[17p-W9_326-1~16]3.5 Ultrashort-pulse and high-intensity lasers

Tue. Mar 17, 2026 1:30 PM - 6:15 PM JST
Tue. Mar 17, 2026 4:30 AM - 9:15 AM UTC
W9_326 (West Bldg. 9)
Chair : Taro Sekikawa(Hokkaido University), Natsuki Kanda(RIKEN), Tomohiro Tamaya()
1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[17p-W9_326-1][The 59th Young Scientist Presentation Award Speech] Generation of high-intensity broadband linearly polarized multi-terahertz pulses for waveform shaping

〇Kotaro Ogawa1, Natsuki Kanda1,2, Yuta Murotani1, Nobuhisa Ishii3, Ryusuke Matsunaga1 (1.ISSP The Univ. of Tokyo., 2.RAP, RIKEN, 3.QST KPSI)
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1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[17p-W9_326-2]Transient Pauli Blocking as broadband ultrafast optical switching mechanism

〇Junjun Jia1, Takashi Yagi2 (1.Waseda Univ., 2.AIST)
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2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[17p-W9_326-3]Nonlinear On-Chip Terahertz Spectroscopy of hBN-Encapsulated Graphene

〇(M1)Kazuya Murakami1,2, Katsumasa Yoshioka1, Taro Wakamura1, Kenji Watanabe3, Takashi Taniguchi3, Ken-ichi Shudo2, Norio Kumada1 (1.NTT Basic Res. Labs., 2.Yokohama Nat. Univ., 3.NIMS)
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2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)

[17p-W9_326-4]Visualization of the Longitudinal Electric Field

〇(B)Takeru Kato1, Ryunosuke Hasegawa1, Taro Sekikawa1 (1.Hokkaido Univ.)
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2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)

[17p-W9_326-5]Optical control of crystal structure and superconductivity in iron-based superconductors via nonlinear phononics

〇Shu Kamiyama1, Tatsuya Kaneko1, Kazuhiko Kuroki1, Masayuki Ochi1 (1.Univ. of Osaka)
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2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)

[17p-W9_326-6]Spectral Widening of High-Intensity Sub-Picosecond Pulses Using Glass Plates

〇(DC)Kosuke Sakamoto1,2, Hideyuki Takada1, Dai Yoshitomi1, Masaki Yumoto1, Hirofumi Hidai2,3, Aiko Narazaki1 (1.AIST, 2.Chiba univ., 3.Molecular Chirality Research Center)
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3:15 PM - 3:45 PM JST(6:15 AM - 6:45 AM UTC)

[17p-W9_326-7][The 27th Optics and Quantum Electronics Achievement Award Speech] Generation of intense attosecond pulses and their application to attosecond science

〇Katsumi Midorikawa1 (1.RIKEN RAP)
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3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)English Presentation

[17p-W9_326-8]Beamline Development for Time-Resolved Studies Using an Ultrashort Soft X-ray Source beyond Oxygen K-edge

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)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[17p-W9_326-9]Measurement of supercontinuum soft x-ray pulse using all-optical frequency-resolved optical gating

〇(D)Minshuang Xia1, Kaito Nishimiya1, Eiji J Takahashi1 (1.Extreme Photonics Research Team, RAP, RIKEN, 2-1 Hirosawa, Wako, 351-0198, Japan)
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4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)English Presentation

[17p-W9_326-10]First Observation of Time-Resolved Emergence of Photochemical and Thermal Ring-Opening Dynamics in 1,3-Cyclohexadiene

〇Bateer Lu1, Sekikawa Taro1 (1.Hokkaido Univ.)
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4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[17p-W9_326-11]Observation of Photoelectron Circular Dichroism in Chiral Molecules Using a 21.7-eV Circularly Polarized High-Harmonic Light Source

〇(M1)Ryunosuke Oshima1, Shuhei Matano1, Shinichiro Minemoto2, Taro Sekikawa1 (1.Hokkaido Univ., 2.Tohoku 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 AwardEnglish Presentation

[17p-W9_326-12]Development of high-power 1.06 μm ultrafast fiber amplifier toward high-efficiency vacuum-ultraviolet generation

〇(P)Wang Shang1, Yohei Kobayashi1 (1.Univ. Tokyo)
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5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[17p-W9_326-13]High-peak-power operation of Cr:ZnS femtosecond laser mode-locked by SWCNTs

〇Daiki Okazaki1, Wanyu Dai2, Esko Kauppinen3, Shohei Chiashi2, Shigeo Maruyama2,4, Satoshi Ashihara5, Shigeki Tokita1 (1.ICR Kyoto Univ., 2.Faculty of Eng. UTokyo, 3.Aalto Univ., 4.Zhejiang Univ., 5.IIS UTokyo)
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5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)

[17p-W9_326-14]Measurements of gain in Co:MgF2 for amplification of broadband mid-infrared pulses

〇Natsuki Kanda1, Kaito Nishimiya1, Eiji J. Takahashi1 (1.RAP, RIKEN)
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5:45 PM - 6:00 PM JST(8:45 AM - 9:00 AM UTC)

[17p-W9_326-15]CW-Pumped High-Repetition-Rate Infrared Solid-State Laser Amplifier

〇(M2)Tomoyuki Shoji1, Yimin Gu1, Tomoya Mizuno1, Takayuki Kurihara1, Teruto Kanai1, Elizaveta Pyatenko1, Jiro Itatani1 (1.ISSP, Univ. of Tokyo)
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6:00 PM - 6:15 PM JST(9:00 AM - 9:15 AM UTC)English Presentation

[17p-W9_326-16]Alloharmonics in BISER (Burst Intensification by Singularity Emitting Radiation)

〇Alexander S Pirozhkov1, K. Ogura1, M. S. Pirozhkova1, A. Sagisaka1, T. Zh. Esirkepov1, A. Ya. Faenov2, T. A. Pikuz2,3, H. Kotaki1, Y. Hayashi1, Y. Fukuda1, J. K. Koga1,4, S. V. Bulanov1,5, H. Daido2, N. Hasegawa1, M. Ishino1, M. Nishikino1, M. Koike1, T. Kawachi1, H. Kiriyama1, D. Neely6,7, M. Kando1 (1.QST, 2.Osaka Univ., 3.Inst. Laser Tech., 4.Kyoto Int. Univ Acad, 5.ELI-Beamlines, 6.RAL, 7.Univ. Strathclyde)
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