Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Yogo, Akifumi; Kondo, Kiminori; Mori, Michiaki; Kiriyama, Hiromitsu; Ogura, Koichi; Shimomura, Takuya; Inoue, Norihiro*; Fukuda, Yuji; Sakaki, Hironao; Jinno, Satoshi; et al.
Optics Express (Internet), 22(2), p.2060 - 2069, 2014/01
Times Cited Count：10 Percentile：49.33(Optics)Fukuda, Yuji; Akahane, Yutaka; Aoyama, Makoto; Hayashi, Yukio; Homma, Takayuki; Inoue, Norihiro*; Kando, Masaki; Kanazawa, Shuhei; Kiriyama, Hiromitsu; Kondo, Shuji; et al.
Physics Letters A, 363(2-3), p.130 - 135, 2007/02
Collimated relativistic electrons up to 58 MeV with an electron charge of 2.1 nC were generated by the interaction of intense laser pulses with the Ar cluster target at the laser intensity of 3.5
10
W/cm
. The resulting spectrum does not fit a Maxwellian distribution, but is well described by a two-temperature Maxwellian, which indicates two mechanisms of the electron acceleration. Two dimensional particle-in-cell simulations demonstrate an important role of clusters. The higher energy electrons are injected when they are expelled from the clusters by the laser pulse field. They then gain their energy during the direct acceleration by the laser pulse, whose phase velocity in the underdense plasma is larger than speed of light in vacuum. The lower energy electrons, which are injected during the plasma wave breaking, are accelerated by the wakefield.
Kiriyama, Hiromitsu; Inoue, Norihiro*; Akahane, Yutaka; Yamakawa, Koichi
Optics Express (Internet), 14(1), p.438 - 445, 2006/01
Times Cited Count：23 Percentile：68.38(Optics)no abstracts in English
W/cm intensity by focusing wavefront corrected 100 TW, 10 Hz laser pulsesAkahane, Yutaka; Ma, J.; Fukuda, Yuji; Aoyama, Makoto; Kiriyama, Hiromitsu; Inoue, Norihiro*; Tsuji, Koichi*; Nakai, Yoshiki*; Yamamoto, Yoichi*; Sheldakova, J. V.*; et al.
Japanese Journal of Applied Physics, Part 1, 44(8), p.6087 - 6089, 2005/08
Times Cited Count：1 Percentile：4.7(Physics, Applied)An improvement of laser-focused peak intensity has been achieved in a JAERI 100 TW Ti:sapphire chirped-pulse amplifier chain with a feedback-controlled adaptive optics system. Measurements of optical parameters of the laser pulse and an experimental tunneling ionization ratio of a rare gas atom with laser energy scaling have practically confirmed an ultrarelativistic intensity of over 10 W/cm operating at a 10 Hz repetition rate.
Kando, Masaki; Masuda, Shinichi; Zhidkov, A.*; Yamazaki, Atsushi; Kotaki, Hideyuki; Kondo, Shuji; Homma, Takayuki*; Kanazawa, Shuhei; Nakajima, Kazuhisa; Hayashi, Yukio; et al.
Physical Review E, 71(1), p.015403_1 - 015403_4, 2005/01
Times Cited Count：33 Percentile：77.37(Physics, Fluids & Plasmas)no abstracts in English
Wcm
, 10 Hz laser pulsesYamakawa, Koichi; Akahane, Yutaka; Fukuda, Yuji; Aoyama, Makoto; Ma, J.; Inoue, Norihiro*; Ueda, Hideki; Kiriyama, Hiromitsu
Journal of Modern Optics, 50(15-17), p.2515 - 2522, 2003/10
no abstracts in English
Oikawa, Masakazu*; Kamiya, Tomihiro; Fukuda, Mitsuhiro; Okumura, Susumu; Inoue, Hiromitsu*; Masuno, Shinichi*; Umemiya, Shinsuke*; Oshiyama, Yoshifumi*; Taira, Yutaka*
Nuclear Instruments and Methods in Physics Research B, 210(1-4), p.54 - 58, 2003/09
Times Cited Count：25 Percentile：82.89(Instruments & Instrumentation)no abstracts in English
Aoyama, Makoto; Yamakawa, Koichi; Akahane, Yutaka; Ma, J.; Inoue, Norihiro*; Ueda, Hideki; Kiriyama, Hiromitsu
Optics Letters, 28(17), p.1594 - 1596, 2003/09
Times Cited Count：264 Percentile：99.25(Optics)no abstracts in English
O
frequency doublerKiriyama, Hiromitsu; Inoue, Norihiro*; Yamakawa, Koichi
Reza Kenkyu, 31(4), p.282 - 285, 2003/04
no abstracts in English
Yamakawa, Koichi; Aoyama, Makoto; Akahane, Yutaka; Ma, J.; Inoue, Norihiro*; Ueda, Hideki; Kiriyama, Hiromitsu
Reza Kenkyu, 30(12), p.747 - 748, 2002/12
no abstracts in English
O frequency doubler for high-energy Nd:Glass laserKiriyama, Hiromitsu; Inoue, Norihiro*; Yamakawa, Koichi
High-Power Lasers and Applications II (Proceedings of Photonics Asia 2002 Volume 4914), p.6 - 13, 2002/10
no abstracts in English
O crystalsKiriyama, Hiromitsu; Inoue, Norihiro*; Yamakawa, Koichi
JAERI-Research 2002-020, 13 Pages, 2002/09
JAERI-Research-2002-020.pdf:1.14MB
no abstracts in English
O crystalsKiriyama, Hiromitsu; Inoue, Norihiro*; Yamakawa, Koichi
Optics Express (Internet), 10(19), p.1028 - 1032, 2002/09
Times Cited Count：5 Percentile：28.74(Optics)no abstracts in English
O crystalsKiriyama, Hiromitsu; Inoue, Norihiro*; Yagi, Kenichi*; Nagai, Toru*; Aoyama, Makoto; Yamakawa, Koichi
Proceedings of Conference on Lasers and Electro-Optics / Quantum Electronics and Laser Science Conference (CLEO/QELS 2002), p.CPDC6_1 - CPDC6_3, 2002/00
no abstracts in English
Suzuki, Hiromitsu; *; Yonehara, Hiroto; Harami, Taikan; ; Kawashima, Yoshitaka*; *; Inoue, K.*; Hara, Masahiro*; *
Proc. of the 8th Symp. on Accelerator Science and Technology, p.113 - 115, 1991/00
no abstracts in English
*; Inoue, Teruji*; *; *; Kaneko, Hiromitsu; *; Miyakawa, Shunichi
PNC TN241 77-05VOL1, 314 Pages, 1977/03
PNC-TN241-77-05VOL1.pdf:8.45MB
None
Fukuda, Yuji; Akahane, Yutaka; Hayashi, Yukio; Homma, Takayuki; Inoue, Norihiro*; Kando, Masaki; Kanazawa, Shuhei; Kiriyama, Hiromitsu; Kondo, Shuji; Kotaki, Hideyuki; et al.
no journal, ,
no abstracts in English
Yogo, Akifumi; Inoue, Norihiro*; Sakaki, Hironao; Fukuda, Yuji; Jinno, Satoshi; Kanasaki, Masato; Kiriyama, Hiromitsu; Shimomura, Takuya; Ogura, Koichi; Mori, Michiaki; et al.
no journal, ,
The laser-ion acceleration can be complicated by the presence of an amplified spontaneous emission (ASE) pedestal at a leading edge of the high-intensity laser pulse. Several attempts have been made to decrease the ASE level by using a plasma mirror or a OPCPA laser system combined with a saturable absorber: J-KAREN. In this work, we propose another way to improve the main pulse-ASE ratio by using a double-CPA bypass line system. We have developed a new laser line consisting of a pulse compressor, a saturable absorber, a pulse stretcher and a Ti:Sap. multi-pass amplifier. The most remarkable feature of this system is that the bypass line can be installed into a conventional TW laser system.
