[17p-W9_326-1~16] 3.5 Ultrashort-pulse and high-intensity lasers | The 73rd JSAP Spring Meeting 2026

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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)

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 Kanda^1,2, Yuta Murotani¹, Nobuhisa Ishii³, Ryusuke Matsunaga¹ (1.ISSP The Univ. of Tokyo., 2.RAP, RIKEN, 3.QST KPSI)

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)

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 Murakami^1,2, Katsumasa Yoshioka¹, Taro Wakamura¹, Kenji Watanabe³, Takashi Taniguchi³, Ken-ichi Shudo², Norio Kumada¹ (1.NTT Basic Res. Labs., 2.Yokohama Nat. Univ., 3.NIMS)

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.)

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)

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 Sakamoto^1,2, Hideyuki Takada¹, Dai Yoshitomi¹, Masaki Yumoto¹, Hirofumi Hidai^2,3, Aiko Narazaki¹ (1.AIST, 2.Chiba univ., 3.Molecular Chirality Research Center)

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)

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)

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)

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.)

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.)

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)

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 Maruyama^2,4, Satoshi Ashihara⁵, Shigeki Tokita¹ (1.ICR Kyoto Univ., 2.Faculty of Eng. UTokyo, 3.Aalto Univ., 4.Zhejiang Univ., 5.IIS UTokyo)

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)

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)

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. Pikuz^2,3, H. Kotaki¹, Y. Hayashi¹, Y. Fukuda¹, J. K. Koga^1,4, S. V. Bulanov^1,5, H. Daido², N. Hasegawa¹, M. Ishino¹, M. Nishikino¹, M. Koike¹, T. Kawachi¹, H. Kiriyama¹, D. Neely^6,7, 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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