Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Akiyoshi Hishikawa"'
Publikováno v:
ACS Omega, Vol 6, Iss 44, Pp 29862-29868 (2021)
Externí odkaz:
https://doaj.org/article/687092cb1c92486a991fd3965dfcaae5
Autor:
Hiroka Hasegawa, Tiffany Walmsley, Akitaka Matsuda, Toru Morishita, Lars Bojer Madsen, Frank Jensen, Oleg I. Tolstikhin, Akiyoshi Hishikawa
Publikováno v:
Frontiers in Chemistry, Vol 10 (2022)
Dissociative ionization of tetrafluoromethane (CF4) in linearly polarized ω-2ω ultrashort intense laser fields (1.4 × 1014 W/cm2, 800 and 400 nm) has been investigated by three-dimensional momentum ion imaging. The spatial distribution of CF3+ pro
Externí odkaz:
https://doaj.org/article/7cb619c50fe64e288a8a89be91c9a3ee
Autor:
Tomoyuki Endo, Karl Michael Ziems, Martin Richter, Friedrich G. Fröbel, Akiyoshi Hishikawa, Stefanie Gräfe, François Légaré, Heide Ibrahim
Publikováno v:
Frontiers in Chemistry, Vol 10 (2022)
We have investigated the dissociation mechanisms of the prototypical heavy polar molecule OCS into the two break-up channels of the dication, OCS2+ → O+ + CS+ and OC+ + S+, in phase-locked two-color intense laser fields. The branching ratio of the
Externí odkaz:
https://doaj.org/article/d5e03d14fe3d410bbaf9930b3fc69550
Autor:
Mizuho Fushitani, Akiyoshi Hishikawa
Publikováno v:
Structural Dynamics, Vol 3, Iss 6, Pp 062602-062602-11 (2016)
We present applications of extreme ultraviolet (XUV) single-order laser harmonics to gas-phase ultrafast photoelectron spectroscopy. Ultrashort XUV pulses at 80 nm are obtained as the 5th order harmonics of the fundamental laser at 400 nm by using Xe
Externí odkaz:
https://doaj.org/article/0785fcf8acc5467fb9447b86d763c3d1
Autor:
Mizuho Fushitani, Makoto Yamada, Hikaru Fujise, Shigeki Owada, Tadashi Togashi, Kyo Nakajima, Makina Yabashi, Akitaka Matsuda, Yasumasa Hikosaka, Akiyoshi Hishikawa
Publikováno v:
Physical Review A. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::456b452040a172f8216c93998d9f5c91
https://doi.org/10.1103/physreva.107.l021101
https://doi.org/10.1103/physreva.107.l021101
Publikováno v:
ACS Omega, Vol 6, Iss 44, Pp 29862-29868 (2021)
Association reactions by femtosecond laser filamentation in gaseous C2H4 were studied by time-of-flight mass spectrometry of neutral reaction products. Direct sampling from the reaction cell to a mass spectrometer via a differential pumping stage all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::002d420fe6e7d4adbd9862267041c7c1
https://doaj.org/article/687092cb1c92486a991fd3965dfcaae5
https://doaj.org/article/687092cb1c92486a991fd3965dfcaae5
Autor:
Tomoyuki Endo, Chen Qu, Heide Ibrahim, Samuel Beaulieu, Akiyoshi Hishikawa, Michael S. Schuurman, Mizuho Fushitani, Jude Deschamps, Bruno E. Schmidt, François Légaré, Hikaru Fujise, Philippe Lassonde, Paul L. Houston, Joel M. Bowman, Simon P. Neville, Vincent Wanie
Publikováno v:
Science. 370:1072-1077
Roaming dynamics in real time Roaming is distinct from conventional reaction channels because of the unusual geometries that chemical systems use to bypass the minimum energy pathway. It is a relatively new phenomenon that is usually determined in ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f45121dbb4faa8d3340b781b161906ac
https://doi.org/10.1126/science.abc2960
https://doi.org/10.1126/science.abc2960
Publikováno v:
Bulletin of the Chemical Society of Japan. 93:1293-1304
Molecules irradiated with intense laser pulses (field intensity ∼1015 W/cm2) exhibit a variety of characteristic processes, such as tunneling ionization, electron rescattering, high-order harmonics...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e6f70f66f02a882aff0ee48bd2c56ee
https://doi.org/10.1246/bcsj.20200158
https://doi.org/10.1246/bcsj.20200158
Publikováno v:
The International Conference on Ultrafast Phenomena (UP) 2022.
Electron-ion coincidence spectroscopy is powerful to elucidate tunneling ionization dynamics, but applicable only to molecules susceptible to dissociation. Here we introduce a novel scheme with additional pulses, which has been successfully applied t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02495deb8e56b1c126fbd546acfbb2b5
https://doi.org/10.1364/up.2022.tu4a.65
https://doi.org/10.1364/up.2022.tu4a.65
Autor:
Hiroka Hasegawa, Tiffany Walmsley, Akitaka Matsuda, Toru Morishita, Lars Bojer Madsen, Frank Jensen, Oleg I. Tolstikhin, Akiyoshi Hishikawa
Publikováno v:
The International Conference on Ultrafast Phenomena (UP) 2022.
To extend application of ω-2ω intense field reaction control to highly symmetric molecules, CF4 was studied by three-dimensional momentum imaging. The C-F bond directed along larger side of the laser fields tends to be broken.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::796e0dd485a215d770687d954aeedebb
https://doi.org/10.1364/up.2022.w2b.1
https://doi.org/10.1364/up.2022.w2b.1