Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Kazuto Otani"'
Autor:
Yasuhiro Miyasaka, Masaki Hashida, Shuji Sakabe, Yoshinobu Ikuta, Kazuto Otani, Shigeki Tokita
Publikováno v:
Journal of Laser Micro/Nanoengineering. 7:194-197
Periodic nano-grating structures self-formed on the surface of several metals by femtosecond laser pulses are analyzed by two-dimensional Fourier-transform. For the self-formation of grating structures on metal surfaces, the period of the structures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96383e17a52266015ca1a29bc0fd4a98
https://doi.org/10.2961/jlmn.2012.02.0011
https://doi.org/10.2961/jlmn.2012.02.0011
Autor:
Kazuto Otani, Takashi Hasebe, Kayo Matsuura, Kensuke Homma, Shuji Sakabe, Shunsuke Inoue, Yoshihide Nakamiya, Masaki Hashida
Publikováno v:
Progress of Theoretical and Experimental Physics
The quasi-parallel photon-photon scattering by combining two-color laser fields is an approach to produce resonant states of low-mass fields in laboratory. In this system resonances can be probed via the four-wave mixing process in the vacuum. A sear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::514c1a5c7f9bfb39ad707ec81bf258ea
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Autor:
D. Ichinose, Kazuto Otani, Keisuke Shigemori, Hiroshi Azechi, Tetsuo Irifune, T. Sakaiya, T. Shiota
Publikováno v:
Journal de Physique IV (Proceedings). 133:37-41
We have developed a novel method to measure sound velocity of laser‐irradiated iron foils by side‐on x‐ray radiograph technique. Iron foils were irradiated with two‐stepped laser pulse to reach the earth’s core condition. We obtained not on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4573f2d7457790f270a657b3f385046
https://doi.org/10.1051/jp4:2006133008
https://doi.org/10.1051/jp4:2006133008
Autor:
Masakatsu Murakami, Yen-Wei Chen, Shinya Nozaki, Y. Tamari, Atsushi Sunahara, Naofumi Ohnishi, Yasukazu Izawa, Hiroshi Azechi, Katsunobu Nishihara, Keisuke Shigemori, Takeshi Watari, Shinsuke Fujioka, Takayoshi Norimatsu, Takeshi Yamada, Kazuki Okuno, Kazuto Otani, Mitsuo Nakai, Tatsuhiro Sakaiya, Keiji Nagai, Hiroyuki Shiraga, Motohiro Tanaka
Publikováno v:
Physics of Plasmas. 11:2814-2822
Suppression of hydrodynamic instabilities is very crucial for the ultimate goal of inertial fusion energy (IFE). A high-Z doped plastic of CHBr (brominated polystyrene) ablator is a very promising candidate to suppress the ablative Rayleigh–Taylor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23c61e02b4211ac581547f25aa303210
https://doi.org/10.1063/1.1705654
https://doi.org/10.1063/1.1705654
Publikováno v:
Japanese Journal of Applied Physics. 45:4224-4226
An improved technique for measuring the temperature at the rear surface of laser-irradiated foils is presented. We observed the optical emission at the rear surface of laser-irradiated foils using a spectrometer equipped with an optical streak camera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::add2e9e2e3dfe1095928401a2cf770f8
https://doi.org/10.1143/jjap.45.4224
https://doi.org/10.1143/jjap.45.4224
Autor:
Tomokazu Sano, Sohsuke Ohno, Y. Hironaka, T. Sakaiya, Takeshi Watari, Kazuto Otani, Tadashi Kondo, Akiko M. Nakamura, Masahiko Arakawa, T. Mochiyama, Hideo Nagatomo, T. Fujiwara, Keisuke Shigemori, Shinsuke Fujioka, Kosuke Kurosawa, Takafumi Matsui, Seiji Sugita, Toshihiko Kadono, Hikaru Yabuta
Publikováno v:
EPJ Web of Conferences, Vol 59, p 19002 (2013)
Flyer acceleration technique using high-power lasers has several advantages such as the achieved velocities higher than 10 km/s and non-contamination to the products generated by impacts. In this study, we show that a high-power laser can achieve fly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::388e78817f5417ca64015e0b99261895
https://doaj.org/article/becd289580834bd7aaf4f376adab4c48
https://doaj.org/article/becd289580834bd7aaf4f376adab4c48
Autor:
Masaki Hashida, Yasuhiro Miyasaka, Shigeki Tokita, Shuji Sakabe, Kazuto Otani, Yoshinobu Ikuta
Publikováno v:
Physical Review B. 86
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb61542c296626259f383e2902c83d6c
https://doi.org/10.1103/physrevb.86.075431
https://doi.org/10.1103/physrevb.86.075431
Autor:
Masaki Hashida, Shuji Sakabe, Kazuto Otani, Shunsuke Inoue, Hitoshi Sakagami, Toshihiro Taguchi, Masayasu Hata, Shigeki Tokita
Publikováno v:
Physical review letters. 109(18)
We report the first direct measurement of the emission duration of laser-accelerated fast electrons from the surface of a solid target irradiated by a high-intensity femtosecond laser pulse. The emission duration is determined by autocorrelation meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff9b8c347ca26efa51409529955bf56b
https://pubmed.ncbi.nlm.nih.gov/23215285
https://pubmed.ncbi.nlm.nih.gov/23215285
Autor:
Shigeki Tokita, Kazuto Otani, Toshihiko Nishoji, Shuji Sakabe, Shunsuke Inoue, Masaki Hashida
Publikováno v:
Physical Review Letters. 106
We have experimentally demonstrated that fast electrons emitted from a metallic wire irradiated by a 5x10{sup 18} W/cm{sup 2} laser pulse can be collimated along the wire, and that their intensity is significantly enhanced in the axial direction of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3eb76798cec04f4e6bc1a77656bbb149
https://doi.org/10.1103/physrevlett.106.255001
https://doi.org/10.1103/physrevlett.106.255001
Autor:
Shigeki Tokita, Shuji Sakabe, Toshihiko Nishoji, Kazuto Otani, Masaki Hashida, Shunsuke Inoue
Publikováno v:
2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC).
The key issue to realize single-shot ultrafast electron diffraction (UED) is to develop intense short electron-pulse sources. With conventional UED instruments, an electron pulse is generated at a photocathode irradiated by a femtosecond laser pulse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edddc6b02c3e4609564aeb4b13fe285d
https://doi.org/10.1109/cleoe.2011.5943027
https://doi.org/10.1109/cleoe.2011.5943027