Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Yutaka Ueshima"'
Autor:
Hideki Yoshikawa, Mineharu Suzuki, Yoshitomo Harada, Shigeyuki Matsunami, Yutaka Ueshima, Keisuke Goto
Publikováno v:
Journal of Surface Analysis. 26:188-189
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a82f3f5cd486837a61eb7709d0d9e91f
https://doi.org/10.1384/jsa.26.188
https://doi.org/10.1384/jsa.26.188
Simulation of electron bunch generation by an ultrashort-pulse high-intensity laser-driven wakefield
Autor:
Mitsuru Yamagiwa, Daisuke Wakabayashi, T. Zh. Esirkepov, K. Saito, S. V. Bulanov, Masaki Kando, Yutaka Ueshima, James Koga
Publikováno v:
Laser Physics. 16:252-258
Electron acceleration due to a wakefield excited by a ultrashort-pulse intense laser propagating through a finite-length underdense plasma layer is studied by two-dimensional particle-in-cell simulation. The electron energy distribution is analyzed f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf14f2552b9cb282966c8ed097ed1b47
https://doi.org/10.1134/s1054660x06020083
https://doi.org/10.1134/s1054660x06020083
Publikováno v:
Journal of the Physical Society of Japan. 74:1745-1749
We analyze the effects of effective mass anisotropy and the effective mass difference between electrons and holes on the electron–hole ( e – h ) BCS state in highly excited semiconductors at variou...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d88abd756239771c9425d6e3cccf0c7
https://doi.org/10.1143/jpsj.74.1745
https://doi.org/10.1143/jpsj.74.1745
Autor:
Hitoshi Isahara, Mitsuru Yamagiwa, Masaki Murata, Tamotsu Shirado, Akira Sasaki, Toshiyuki Kanamaru, Yutaka Ueshima
Publikováno v:
Journal of Plasma and Fusion Research. 81:717-722
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3b9f544aa5f5fa502a690784bb3bd2f
https://doi.org/10.1585/jspf.81.717
https://doi.org/10.1585/jspf.81.717
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 455:181-184
Proton and ion acceleration by sub Peta-watt laser radiation in overdense plasmas, especially for convex thin foils, is studied by 2D3V-PIC (Particle in Cell) numerical simulations. It is found that the target and pulse shape design is important for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af23287ca10f6bbe7c8078bd6ec99db0
https://doi.org/10.1016/s0168-9002(00)00728-2
https://doi.org/10.1016/s0168-9002(00)00728-2
Autor:
N. M. Naumova, Katsunobu Nishihara, Sv Bulanov, T. Zh. Esirkepov, Francesco Pegoraro, T. V. Liseikina, Yasuhiko Sentoku, Yutaka Ueshima, Yoshiaki Kato, H. Ruhl, Francesco Califano, K. Mima
Publikováno v:
Scopus-Elsevier
A method is proposed for generating collimated beams of fast ions in laser-plasma interactions. Two-dimensional and three-dimensional particle-in-cell simulations show that the ponderomotive force expels electrons from the plasma region irradiated by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5588a73a6509c7495dd58f3ea27feab4
https://doi.org/10.1134/1.568365
https://doi.org/10.1134/1.568365
Publikováno v:
Physical Review E. 60:5987-5990
Ion acceleration and expansion in the interaction of a relativistically intense short-pulse laser with an underdense plasma layer are investigated. Ion and electron dynamics are studied by a two-dimensional particle-in-cell simulation with the real m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d937bfcf6e134c2038da5a423ed143b1
https://doi.org/10.1103/physreve.60.5987
https://doi.org/10.1103/physreve.60.5987
Publikováno v:
Physical Review E. 60:3262-3272
We extend the quantal hypernetted-chain (QHNC) method, which has been proved to yield accurate results for liquid metals, to treat a partially ionized plasma. In a plasma, the electrons change from a quantum to a classical fluid gradually with increa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d027a73eb2ae5b1522f1befb6696d55e
https://doi.org/10.1103/physreve.60.3262
https://doi.org/10.1103/physreve.60.3262
Publikováno v:
Laser and Particle Beams. 17:45-58
A relativistically intense short laser pulse can produce a large flux of X rays through the interaction with electrons that are driven by its intense electromagnetic fields. Apart from X rays from the high-Z matter irradiation by an intense laser, tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab08b90f58c53984975e299d6c6a0952
https://doi.org/10.1017/s0263034699171040
https://doi.org/10.1017/s0263034699171040
Autor:
Yutaka Ueshima, Katsunobu Nishihara
Publikováno v:
Plasma Physics and Controlled Fusion. 41:A257-A266
The Lyapunov exponent has been investigated both numerically and analytically for various plasma states. With the use of a three-dimensional particle code that calculates Coulomb forces among individual particles, instantaneous expansion rates of nea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::152e4c736f0a8a7b03773aabff724165
https://doi.org/10.1088/0741-3335/41/3a/019
https://doi.org/10.1088/0741-3335/41/3a/019