The 87th JSAP Autumn Meeting 2026
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Session Details

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

[10p-C213-1~10]3.5 Ultrashort-pulse and high-intensity lasers

Thu. Sep 10, 2026 2:00 PM - 4:45 PM JST
Thu. Sep 10, 2026 5:00 AM - 7:45 AM UTC
C213 (Faculty of Engineering C Block)
2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[10p-C213-1]Photoinduced structural dynamics of semiconductor-to-superionic phase transition in Cu2S

〇(D)Kaito Enya1, Gael Privault1, Keito Sano2, Satoshi Ohmura3, Arnaud Arbouet1,4, Masanori Sakamoto2, Masaki Hada1 (1.Univ. Tsukuba, 2.Univ. Osaka, 3.Ehime Univ., 4.CNRS Dynacom)
2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)

[10p-C213-2]Observation of intertube interactions in carbon nanotube bundles
using high coherence time-resolved electron diffraction setup

〇Riyo Nagao1, Nagisa Yamamoto1, Gael Privault1, Jun-ichi Fujita1, Hiroo Suzuki2, Yasuhiko Hayashi2, Shin-ya Koshihara1, Kenji Tsuruta2, Arbouet Arnaud1,3, Satoshi Ohmura4, Masaki Hada1 (1.Univ. Tsukuba, 2.Okayama Univ., 3.CNRS IRL Dynacom, 4.Ehime Univ.)
2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)

[10p-C213-3]Observation of THz-Driven Structural Dynamics in 2H–MoTe2 Thin Films

〇Haruki Taira1, Fuko Kato1, Kaito En-ya1, Gael Privault1, Yui Iwasaki1, Nagisa Yamamoto1, Takumi Fukuda2, Shin-ya Koshihara1, Arnaud Arbouet1,3, Yusuke Arashida1, Masaki Hada1 (1.Univ. Tsukuba, 2.OIST, 3.CNRS Dynacom)
2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)

[10p-C213-4]Photoinduced and THz-induced structural dynamics of a ferroelectric crystal by ultrafast electron diffraction

〇(M1)Nagisa Yamamoto1, Weikun Zhou2, Gael Privault1, Riyo Nagao1, Haruki Taira1, Fuko Kato1, Yusuke Arashida1, Arnaud Arbouet1,3, Shinya Koshihara1, Tsukasa Katayama2,4, Masaki Hada1 (1.Univ. Tsukuba, 2.Hokkaido Univ., 3.CNRS IRL Dynacom, 4.Tokyo Univ. of Sci.)
3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[10p-C213-5]Temperature dependence of coherent phonons and scattering mechanisms in Td-WTe2

〇Mizuki Akei1, Yu Mizukoshi1, Muneaki Hase1 (1.Univ. Tsukuba)
3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[10p-C213-6]Spatiotemporal control of ultrashort-pulsed electron using electromagnetic wave

〇(M1)Fuko Kato1, Haruki Taira1, Gael Privault1, Valentin Rollo2,3, Yui Iwasaki1, Riyo Nagao1, Nagisa Yamamoto1, Shinya Koshihara1, Yusuke Arashida1, Arnaud Arbouet1,4, Masaki Hada1 (1.Univ. Tsukuba, 2.CEMES-CNRS, 3.Univ. Toulouse, 4.CNRS IRL Dynacom)
3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[10p-C213-7]Photoinduced dynamics in energy and momentum space using a two-dimensional magnetic semiconductor CrSBr

〇(D)Nanami Tomoda1, Takumi Fukuda1, Xing Zhu1, Shu Kamiyama2, Harley Suchiang1, Sang-Eun Lee1, Michael Man1, Julien Madeo1, Tatsuya Kaneko2, Masayuki Ochi2, Keshav Dani1 (1.OIST, 2.Sci., Osaka Univ.)
4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)

[10p-C213-8]Atomic-scale ultrafast dynamics of layered material WTe2 by lightwave-driven scanning tunneling microscopy

〇(M1)Yuki Kondo1, Yusuke Arashida1, Hiroyuki Mogi1, Osamu Takeuchi1, Shoji Yoshida1, Hidemi Shigekawa1 (1.Univ. Tsukuba)
4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[10p-C213-9]Photoexcited carriers and localized surface plasmons in Cu2-xS nanodisks observed by broadband transient absorption spectroscopy

〇Sora Matsumoto1, Satoru Nagase1, Takumi Yamada2, Masaki Saruyama2, Toshiharu Teranishi2, Yoshihiko Kanemitsu2, Ikufumi Katayama1, Hirokazu Tahara1 (1.Dept. of Phys., Yokohama Natl. Univ., 2.ICR, Kyoto Univ.)
4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[10p-C213-10]Orientation of Rotational Angular Momentum in Gas-Phase Molecules Using Circularly Polarized Mid-Infrared Pulses

〇Hiroki Tsusaka1, Ikki Morhichika1, Satoshi Ashihara1 (1.IIS, UTokyo)
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