Zobrazeno 1 - 10
of 405
pro vyhledávání: '"J Kawanaka"'
Autor:
A. Morace, Y. Abe, J. J. Honrubia, N. Iwata, Y. Arikawa, Y. Nakata, T. Johzaki, A. Yogo, Y. Sentoku, K. Mima, T. Ma, D. Mariscal, H. Sakagami, T. Norimatsu, K. Tsubakimoto, J. Kawanaka, S. Tokita, N. Miyanaga, H. Shiraga, Y. Sakawa, M. Nakai, H. Azechi, S. Fujioka, R. Kodama
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract High energy density physics is the field of physics dedicated to the study of matter and plasmas in extreme conditions of temperature, densities and pressures. It encompasses multiple disciplines such as material science, planetary science,
Externí odkaz:
https://doaj.org/article/b06588e272214e7db8de834d27df1ae6
Autor:
T. Ozaki, Y. Abe, Y. Arikawa, Y. Sentoku, J. Kawanaka, S. Tokita, N. Miyanaga, T. Jitsuno, Y. Nakata, K. Tsubakimoto, A. Sunahara, T. Jhozaki, E. Miura, O. Komeda, A. Iwamoto, H. Sakagami, S. Okihara, K. Ishii, R. Hanayama, Y. Mori, Y. Kitagawa
Publikováno v:
Nuclear Fusion, Vol 63, Iss 3, p 036009 (2023)
Polystyrene deuteride shell targets with two holes were imploded by the Gekko XII laser and additionally heated by the LFEX laser in a direct fast ignition experiment. In general, when an ultra-intense laser is injected into a blow-off plasma created
Externí odkaz:
https://doaj.org/article/5878afc229e0419f82990126da5238c3
Autor:
A. Morace, N. Iwata, Y. Sentoku, K. Mima, Y. Arikawa, A. Yogo, A. Andreev, S. Tosaki, X. Vaisseau, Y. Abe, S. Kojima, S. Sakata, M. Hata, S. Lee, K. Matsuo, N. Kamitsukasa, T. Norimatsu, J. Kawanaka, S. Tokita, N. Miyanaga, H. Shiraga, Y. Sakawa, M. Nakai, H. Nishimura, H. Azechi, S. Fujioka, R. Kodama
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Enhanced coupling of laser energy to the target particles is a fundamental issue in laser-plasma interactions. Here the authors demonstrate increased photon absorption leading into higher laser to electron and proton energy transfer through the inter
Externí odkaz:
https://doaj.org/article/f6b3b1936b414dfbba241270c3506db9
Autor:
A S Martynenko, T A Pikuz, I Yu Skobelev, S A Pikuz, N Iwata, T Johzaki, J Kawanaka, K F F Law, S Fujioka, R Kodama, A Morace
Publikováno v:
Plasma Physics and Controlled Fusion. 65:055016
Both K-shell x-ray emission spectroscopy and fluorescence spectroscopy are well-accepted diagnostics for experimental studies of warm dense matter and hot dense matter (HDM). Until now, however, this diagnosis has been used for the study of dense mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b2453706851a9f291af0eb061e4476f
https://doi.org/10.1088/1361-6587/acc357
https://doi.org/10.1088/1361-6587/acc357
Autor:
Kazuki Kawai, Yoshio Mizuta, Y. Hatano, Yuki Muramatsu, T. Sekine, Yasuki Takeuchi, Koichi Iyama, T. Kurita, Yoshinori Tamaoki, Takuto Iguchi, Shigeki Tokita, Yoshinori Kato, Takaaki Morita, J. Kawanaka, Yuki Kabeya, Masateru Kurata
Publikováno v:
Solid State Lasers XXVIII: Technology and Devices.
A 11.5 J at 40 ns output has been obtained from a diode-pumped cryo-cooled Yb:YAG ceramics active-mirror laser amplifier system. The system consists of two amplifier heads which has four Yb:YAG ceramic disks and two pump LD modules. The Yb:YAG cerami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05e372021b039af0bc710ceee12fcf1a
https://doi.org/10.1117/12.2510767
https://doi.org/10.1117/12.2510767
Publikováno v:
High Energy Density Physics. 38:100906
From experiments, we analyzed the spatiotemporal characteristics of a laser pulse in the Fourier plane in the 4-f arrangement. Based on these characteristics, we demonstrated two-stage frequency domain optical parametric amplification (FDOPA). The 27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a411f91e1e83234cfb3de6596ff8565
https://doi.org/10.1016/j.hedp.2020.100906
https://doi.org/10.1016/j.hedp.2020.100906
Autor:
H. Nishimura, Akifumi Yogo, Yuki Abe, S. Sakata, Seung Ho Lee, Takayoshi Norimatsu, K. Mima, J. Kawanaka, Hiroshi Azechi, Yasunobu Arikawa, N. Kamitsukasa, S. Tosaki, Alessio Morace, Alexander Andreev, Kazuki Matsuo, R. Kodama, Hiroyuki Shiraga, Yoichi Sakawa, X. Vaisseau, N. Iwata, M. Nakai, Yasuhiko Sentoku, Shinsuke Fujioka, N. Miyanaga, Sadaoki Kojima, Masayasu Hata, Shigeki Tokita
Publikováno v:
Nature Communications
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Increasing the laser energy absorption into energetic particle beams represents a longstanding quest in intense laser-plasma physics. During the interaction with matter, part of the laser energy is converted into relativistic electron beams, which ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af3777c0c7172088024fb1a31efd4c85
https://pubmed.ncbi.nlm.nih.gov/31278266
https://pubmed.ncbi.nlm.nih.gov/31278266
Autor:
Hiroyuki Shiraga, N. Miyanaga, J. Park, T. Ozaki, H. Hosoda, Sadaoki Kojima, Shinsuke Fujioka, Zhe Zhang, J. Kawanaka, Yasunobu Arikawa, Mitsuo Nakai, Hideo Nagatomo, Takahisa Jitsuno, T. Ikenouchi, H. Chen, Hiroaki Nishimura, Hiroshi Azechi, Yoshiki Nakata, Gerald Williams
Publikováno v:
High Energy Density Physics. 15:78-81
Quantitative high-energy X-ray spectroscopy is applied for the laser plasma interaction in the fast ignition scheme. A double tracer layer target is designed for the absolute measurement of hot electron temperature and laser energy transfer efficienc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c1a3177668b4311f15c1970dcee0d6e
https://doi.org/10.1016/j.hedp.2015.04.001
https://doi.org/10.1016/j.hedp.2015.04.001
Autor:
N. Iwata, Takayoshi Norimatsu, H. Shiraga, Kazuki Matsuo, N. Kamitsukasa, N. Miyanaga, Kohei Yamanoi, Akito Sagisaka, Yasunobu Arikawa, Akifumi Yogo, Shigeki Tokita, Sergei V. Bulanov, Sadaoki Kojima, Kunioki Mima, Shinsuke Fujioka, Mitsuo Nakai, Hitoshi Sakagami, Tomoyuki Johzaki, J. Kawanaka, Yasuhiko Sentoku, Hiroshi Azechi, Alessio Morace, Kiminori Kondo, Hideo Nagatomo, Hiroaki Nishimura, S. Tosaki, Masakatsu Murakami
Publikováno v:
Scientific Reports
Using one of the world most powerful laser facility, we demonstrate for the first time that high-contrast multi-picosecond pulses are advantageous for proton acceleration. By extending the pulse duration from 1.5 to 6 ps with fixed laser intensity of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ed3b61c8d3c09f19b78688f28d96a90
https://doi.org/10.1038/srep42451
https://doi.org/10.1038/srep42451