Zobrazeno 1 - 10
of 3 422
pro vyhledávání: '"Fujioka, S."'
Autor:
Korneev, Ph., Bukharskii, N. D., Kochetkov, I. V., Ehret, M., Santos, J. J., Abe, Y., Law, K. F. F., Fujioka, S., Schaumann, G., Zielbauer, B.
Optical generation of energetic particle bunches requires high-power laser facilities operating in picosecond or femtosecond temporal domain. It is therefore preferable to use short laser pulses in all-optical platforms designed for guiding and focus
Externí odkaz:
http://arxiv.org/abs/2304.07816
We present the first 3D particle-in-cell simulations of laser driven sheath-based ion acceleration in a kilotesla-level applied magnetic field. The applied magnetic field creates two distinct stages in the acceleration process associated with the tim
Externí odkaz:
http://arxiv.org/abs/2001.06117
Autor:
Ehret, M., Kochetkov, Yu., Abe, Y., Law, K. F. F., Stepanischev, V., Fujioka, S., d'Humi'eres, E., Zielbauer, B., Bagnoud, V., Schaumann, G., Roth, M., Tikhonchuk, V., Santos, J. J., Korneev, Ph.
A strong quasi-stationary magnetic field is generated in hollow targets with curved internal surface under the action of a relativistically intense picosecond laser pulse. Experimental data evidence formation of quasistationary strongly magnetized pl
Externí odkaz:
http://arxiv.org/abs/1908.11430
Autor:
Law, K. F. F., Abe, Y., Morace, A., Arikawa, Y., Sakata, S., Lee, S., Matsuo, K., Morita, H., Ochiai, Y., Liu, C., Yogo, A., Okamoto, K., Golovin, D., Ehret, M., Ozaki, T., Nakai, M., Sentoku, Y., Santos, J. J., d'Humières, E., Korneev, Ph., Fujioka, S.
Magnetic reconnection is a process whereby magnetic field lines in different directions "reconnect" with each other, resulting in the rearrangement of magnetic field topology together with the conversion of magnetic field energy into the kinetic ener
Externí odkaz:
http://arxiv.org/abs/1904.02850
Autor:
Abe, Y., Law, K. -F. -F., Korneev, Ph., Fujioka, S., Kojima, S., Lee, S. -H., Sakata, S., Matsuo, K., Oshima, A., Morace, A., Arikawa, Y., Yogo, A., Nakai, M., Norimatsu, T., d'Humiéres, E., Santos, J. J., Kondo, K., Sunahara, A., Gus'kov, S., Tikhonchuk, V.
A relativistic laser pulse, confined in a cylindrical target, performs multiple scattering along the target surface. The confinement property of the target results in a very effcient interaction. This proccess, which is just yet another example of th
Externí odkaz:
http://arxiv.org/abs/1801.04154
Autor:
Santos, J. J., Bailly-Grandvaux, M., Ehret, M., Arefiev, A. V., Batani, D., Beg, F. N., Calisti, A., Ferri, S., Florido, R., Forestier-Colleoni, P., Fujioka, S., Gigosos, M. A., Giuffrida, L., Gremillet, L., Honrubia, . J., Kojima, S., Korneev, Ph., Law, K. F. F., Marquès, J. -R., Morace, A., Mossé, C., Peyrusse, O., Rose, S., Roth, M., Sakata, S., Schaumann, G., Suzuki-Vidal, F., Tikhonchuk, V. T., Toncian, T., Woolsey, N., Zhang, Z.
Powerful laser-plasma processes are explored to generate discharge currents of a few $100\,$kA in coil targets, yielding magnetostatic fields (B-fields) in excess of $0.5\,$kT. The quasi-static currents are provided from hot electron ejection from th
Externí odkaz:
http://arxiv.org/abs/1712.07175
Autor:
Korneev, Ph., Abe, Y., Law, K. -F. -F., Bochkarev, S. G., Fujioka, S., Kojima, S., Lee, S. -H., Sakata, S., Matsuo, K., Oshima, A., Morace, A., Arikawa, Y., Yogo, A., Nakai, M., Norimatsu, T., d'Humiéres, E., Santos, J. J., Kondo, K., Sunahara, A., Bychenkov, V. Yu., Gus'kov, S., Tikhonchuk, V.
Electron acceleration by relativistically intense laser beam propagating along a curved surface allows to split softly the accelerated electron bunch and the laser beam. The presence of a curved surface allows to switch an adiabatic invariant of elec
Externí odkaz:
http://arxiv.org/abs/1711.00971
Autor:
Nagai, K., Fujiwara, H., Aratani, H., Fujioka, S., Yomosa, H., Nakatani, Y., Kiss, T., Sekiyama, A., Kuroda, F., Fujii, H., Oguchi, T., Tanaka, A., Miyawaki, J., Harada, Y., Takeda, Y., Saitoh, Y., Suga, S., Umetsu, R. Y.
Publikováno v:
Phys. Rev. B 97, 035143 (2018)
We have studied the electronic structure of ferrimagnetic Mn2VAl single crystal by means of soft X-ray absorption spectroscopy (XAS), X-ray absorption magnetic circular dichroism (XMCD) and resonant soft X-ray inelastic scattering (RIXS). We have suc
Externí odkaz:
http://arxiv.org/abs/1705.10027
Autor:
Bailly-Grandvaux, M., Santos, J. J., Bellei, C., Forestier-Colleoni, P., Fujioka, S., Giuffrida, L., Honrubia, J. J., Batani, D., Bouillaud, R., Chevrot, M., Cross, J. E., Crowston, R., Dorard, S., Dubois, J. -L., Ehret, M., Gregori, G., Hulin, S., Kojima, S., Loyez, E., Marques, J. -R., Morace, A., Nicolai, Ph., Roth, M., Sakata, S., Schaumann, G., Serres, F., Servel, J., Tikhonchuk, V. T., Woolsey, N., Zhang, Z.
High-energy-density flows through dense matter are needed for effective progress in the production of laser-driven intense sources of energetic particles and radiation, in driving matter to extreme temperatures creating state regimes relevant for pla
Externí odkaz:
http://arxiv.org/abs/1608.08101
Autor:
Yogo, A., Mima, K., Iwata, N., Tosaki, S., Morace, A., Arikawa, Y., Fujioka, S., Nishimura, H., Sagisaka, A., Johzaki, T., Matsuo, K., Kamitsukasa, N., Kojima, S., Nagatomo, H., Nakai, M., Shiraga, H., Murakami, M., Tokita, S., Kawanaka, J., Miyanaga, N., Yamanoi, K., Norimatsu, T., Sakagami, H., Bulanov, S. V., Kondo, K., Azechi, H.
Using a kilojoule class laser, we demonstrate for the first time that high-contrast picosecond pulses are advantageous for ion acceleration. We show that a laser pulse with optimum duration and a large focal spot accelerates electrons beyond the pond
Externí odkaz:
http://arxiv.org/abs/1608.00341