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Gu, Y. J.*; Klimo, O.*; Kumar, D.*; Liu, Y.*; Singh, S. K.*; Esirkepov, T. Z.; Bulanov, S. V.; Weber, S.*; Korn, G.*
Physical Review E, 93(1), p.013203_1 - 013203_6, 2016/01
被引用回数:27 パーセンタイル:86.23(Physics, Fluids & Plasmas)The magnetic quadrupole structure formation during the interaction of two ultrashort high power laser pulses with a collisionless plasma is demonstrated with 2.5-dimensional particle-in-cell simulations. The subsequent expansion of the quadrupole is accompanied by magnetic-field annihilation in the ultrarelativistic regime, when the magnetic field cannot be sustained by the plasma current.
Liu, Y.*; Klimo, O.*; Esirkepov, T. Z.; Bulanov, S. V.; Gu, Y.*; Weber, S.*; Korn, G.*
Physics of Plasmas, 22(11), p.112302_1 - 112302_8, 2015/11
被引用回数:3 パーセンタイル:13.15(Physics, Fluids & Plasmas)Using particle-in-cell computer simulations we have studied the electromagnetic relativistic soliton formation in the underdense multi-species plasmas irradiated by high power laser radiation. It has been shown that in a multi-species plasma the light ion acceleration is quite efficient.
Gu, Y. J.*; Klimo, O.*; Kumar, D.*; Bulanov, S. V.; Esirkepov, T. Z.; Weber, S.*; Korn, G.*
Physics of Plasmas, 22(10), p.103113_1 - 103113_9, 2015/10
被引用回数:10 パーセンタイル:43.06(Physics, Fluids & Plasmas)The magnetic field generated by the laser pulses annihilates in a current sheet formed between the pulses. Magnetic field energy is converted to an inductive longitudinal electric field, which efficiently accelerates the electrons of the current sheet. This new regime of collision less relativistic magnetic field annihilation with a timescale of tens of femtoseconds can be extended to near-critical and overdense plasma with the ultra-high intensity femtosecond laser pulses.
Esirkepov, T. Z.; Bulanov, S. S.*; Koga, J. K.; 神門 正城; 近藤 公伯; Rosanov, N. N.*; Korn, G.*; Bulanov, S. V.
Physics Letters A, 379(36), p.2044 - 2054, 2015/09
被引用回数:53 パーセンタイル:89.48(Physics, Multidisciplinary)In an electromagnetic standing wave formed by two super-intense colliding laser pulses, radiation reaction totally modifies the electron motion. The quantum corrections to the electron motion and the radiation reaction force can be independently small or large, depending on the laser intensity and wavelength, thus dividing the parameter space into 4 domains. The electron motion evolves to limit cycles and strange attractors when radiation reaction dominates. This creates a new framework for high energy physics experiments on the interaction of energetic charged particle beams and colliding super-intense laser pulses.
Bulanov, S. S.*; Esarey, E.*; Schroeder, C. B.*; Leemans, W.*; Bulanov, S. V.; Margarone, D.*; Korn, G.*; Haberer, T.*
Physical Review Special Topics; Accelerators and Beams, 18(6), p.061302_1 - 061302_6, 2015/06
被引用回数:30 パーセンタイル:86.42(Physics, Nuclear)We show that He ions, having almost the same penetration depth as He with the same energy per nucleon, require less laser power to be accelerated to the required energy for the hadron therapy.
Bulanov, S. V.; Esirkepov, T. Z.; 神門 正城; Koga, J. K.; 近藤 公伯; Korn, G.*
Plasma Physics Reports, 41(1), p.1 - 51, 2015/01
被引用回数:102 パーセンタイル:98.61(Physics, Fluids & Plasmas)We discuss the ways towards modelling of astrophysical processes and extreme field regimes with superpower lasers. This will enable modelling under terrestrial laboratory conditions the processes in astrophysical objects and paves the way to experimental verifications using ultra intense lasers.
Bulanov, S. V.; Wilkens, J. J.*; Esirkepov, T. Z.; Korn, G.*; Kraft, G.*; Kraft, S. D.*; Molls, M.*; Khoroshkov, V. S.*
Physics-Uspekhi, 57(12), p.1149 - 1179, 2014/00
被引用回数:109 パーセンタイル:84.64(Physics, Multidisciplinary)The paper examines the prospects of using laser plasma as a source of high-energy ions for the purposes of hadron beam therapy - possibility which is expected not only on theoretical grounds but also on experimental grounds (ions are routinely observed to be accelerated in the interaction of high-power laser radiation with matter). Compared to therapy accelerators like cyclotrons, laser technology is advantageous in that it is more compact and is simpler in delivering ions from the accelerator to the treatment room. Special target designs allow the radiation therapy requirements on ion beam quality to be satisfied.
Bulanov, S. V.; Esirkepov, T. Z.; 神門 正城; Koga, J. K.; 中村 龍史; Bulanov, S. S.*; Zhidkov, A.*; 加藤 義章; Korn, G.*
High-Power, High-Energy, and High-Intensity Laser Technology; and Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers (Proceedings of SPIE, Vol.8780), p.878015_1 - 878015_15, 2013/05
被引用回数:10 パーセンタイル:96.40(Optics)We discuss the key important regimes of electromagnetic field interaction with charged particles. The main attention is paid to nonlinear Thomson/Compton scattering regime with the radiation friction and quantum electrodynamics effects taking into account. This process opens a channel of high efficiency electromagnetic energy conversion into the hard electromagnetic radiation in the form of ultra short high power ray flashes.
Bulanov, S. S.*; Chen, M.*; Schroeder, C. B.*; Esarey, E.*; Leemans, W. P.*; Bulanov, S. V.; Esirkepov, T. Z.; 神門 正城; Koga, J. K.; Zhidkov, A. G.*; et al.
AIP Conference Proceedings 1507, p.825 - 830, 2012/12
被引用回数:9 パーセンタイル:92.52(Physics, Applied)We propose the experiments on the collision of intense laser pulses with energetic electron bunches and on the collision of two or more intense laser pulses for studying extreme field limits in the nonlinear interaction of electromagnetic waves. The regimes of dominant radiation reaction, which completely changes the electromagnetic wave matter interaction, will be revealed in such experiments. This will result in a new powerful source of ultra short high brightness -ray pulses. A possibility of the demonstration of the electron positron pair creation from vacuum in the collision of two or more intense laser pulses is discussed.
Bulanov, S. V.; Esirkepov, T. Z.; 林 由紀雄; 神門 正城; 桐山 博光; Koga, J. K.; 近藤 公伯; 小瀧 秀行; Pirozhkov, A. S.; Bulanov, S. S.*; et al.
AIP Conference Proceedings 1465, p.87 - 96, 2012/07
被引用回数:1 パーセンタイル:45.94(Physics, Applied)In the experiments on the collision of laser light and high intensity electromagnetic pulses generated by relativistic flying mirrors, with electron bunches produced by a conventional accelerator and with laser wake field accelerated electrons the studying of extreme field limits in the nonlinear interaction of electromagnetic waves is proposed. The regimes of dominant radiation reaction, which completely changes the electromagnetic wave-matter interaction, will be revealed. This will result in a new powerful source of high brightness -rays. A possibility of the demonstration of the electron-positron pair creation in vacuum in a multi-photon processes can be realized. This will allow modeling under terrestrial laboratory conditions neutron star magnetospheres, cosmological ray bursts and the Leptonic Era of the Universe.
中村 龍史; Koga, J. K.; Esirkepov, T. Z.; 神門 正城; Korn, G.*; Bulanov, S. V.
Physical Review Letters, 108(19), p.195001_1 - 195001_5, 2012/05
被引用回数:179 パーセンタイル:97.44(Physics, Multidisciplinary)レーザー強度が放射反作用が支配的となる領域に入ると、放射反作用を介したエネルギーロスは高出力線フラッシュを発生する新しい機構と考えることができる。発生する線のパルス長や発散角はレーザー強度とターゲットのスケール長により決定される。放射反作用を考慮した理論解析と粒子シミュレーション解析により、固体密度プラズマからの線フラッシュの発生に対する最適な条件を明らかにした。
Bulanov, S. V.; Esirkepov, T. Z.; 林 由紀雄; 神門 正城; 桐山 博光; Koga, J. K.; 近藤 公伯; 小瀧 秀行; Pirozhkov, A. S.; Bulanov, S. S.*; et al.
Nuclear Instruments and Methods in Physics Research A, 660(1), p.31 - 42, 2011/12
被引用回数:72 パーセンタイル:97.99(Instruments & Instrumentation)We propose the experiments on the collision of laser light and high intensity electromagnetic pulses generated by relativistic flying mirrors, with electron bunches produced by a conventional accelerator and with laser wake field accelerated electrons for studying extreme field limits in the nonlinear interaction of electromagnetic waves.
Bulanov, S. V.; Esirkepov, T. Z.; 林 由紀雄; 神門 正城; 桐山 博光; Koga, J. K.; 近藤 公伯; 小瀧 秀行; Pirozhkov, A. S.; Bulanov, S. S.*; et al.
Plasma Physics and Controlled Fusion, 53(12), p.124025_1 - 124025_13, 2011/12
被引用回数:7 パーセンタイル:30.08(Physics, Fluids & Plasmas)We discuss the progress in the development of the extreme light sources that will open new horizons for studying a wide range of the fundamental science and astrophysics problems. The regimes of dominant radiation reaction, which completely change the electromagnetic wave-matter interaction, will be revealed, resulting in a new extremely powerful source of ultra short high brightness -ray pulses. The possibility of abundant electron-positron pair creation via the multi-photon processes, and possibility of reaching the critical field of quantum electrodynamics which would lead to the vacuum polarization and breakdown, are attracting high attention.
Bulanov, S. V.; Esirkepov, T. Z.; 林 由紀雄; 神門 正城; 桐山 博光; Koga, J. K.; 近藤 公伯; 小瀧 秀行; Pirozhkov, A. S.; Bulanov, S. S.*; et al.
Plasma Physics and Controlled Fusion, 53(12), p.124025_1 - 124025_13, 2011/11
The review is devoted to discussing progress in the development of the extreme light sources that opens new horizons for studying of a wide range of the fundamental science problems and important applications.
Pegoraro, F.*; Bulanov, S. V.; Esirkepov, T. Z.; 神門 正城; Echkina, E.*; Inovenkov, I. N.*; Korn, G.*
Nuclear Instruments and Methods in Physics Research A, 653(1), p.153 - 155, 2011/10
The transverse expansion of a thin foil accelerated in the RPDA regime can be exploited in order to increase the ion energy and the acceleration efficiency at the expense of decreasing the number of accelerated particles. In the relativistic regime, the ions become phase-locked with respect to the electromagnetic wave. The use of an optimal laser pulse shape makes it possible to keep the expanding foil opaque to the laser radiation. This provides a new approach in order to enhance the energy of laser accelerated ions significantly.
Pegoraro, F.*; Bulanov, S. V.; Esirkepov, T. Z.; 神門 正城; Echkina, E. Yu.*; Inovenkov, I. N.*; Korn, G.*
Nuclear Instruments and Methods in Physics Research A, 653(1), p.153 - 155, 2010/10
被引用回数:2 パーセンタイル:19.61(Instruments & Instrumentation)The transverse expansion of a thin foil accelerated in the RPDA regime can be exploited in order to increase the ion energy and the acceleration efficiency at the expense of decreasing the number of accelerated particles. In the relativistic regime, the ions become phase-locked with respect to the electromagnetic wave.
Bulanov, S. V.; Echkina, E. Yu.*; Esirkepov, T. Z.; Inovenkov, I. N.*; 神門 正城; Pegoraro, F.*; Korn, G.*
Physics of Plasmas, 17(6), p.063102_1 - 063102_12, 2010/06
被引用回数:35 パーセンタイル:77.11(Physics, Fluids & Plasmas)The energy of the ions accelerated by an intense electromagnetic wave in the radiation pressure dominated regime can be greatly enhanced by a transverse expansion of a thin target. The expansion decreases the number of accelerated ions in the irradiated region increasing the energy and the longitudinal velocity of the remaining ions. In the relativistic limit, the ions become phase-locked with respect to the electromagnetic wave resulting in an unlimited ion energy gain. This effect and the use of optimal laser pulse shape provide a new approach for great enhancing the energy of laser accelerated ions.
Bulanov, S. V.; Echkina, E. Yu.*; Esirkepov, T. Z.; Inovenkov, I. N.*; 神門 正城; Pegoraro, F.*; Korn, G.*
Physical Review Letters, 104(13), p.135003_1 - 135003_4, 2010/04
被引用回数:143 パーセンタイル:95.60(Physics, Multidisciplinary)The energy of ions accelerated by an intense electromagnetic wave in the radiation pressure dominated regime can be greatly enhanced due to a transverse expansion of a thin target. The expansion decreases the number of accelerated ions in the irradiated region resulting in an increase in the ion energy and in the ion longitudinal velocity. In the relativistic limit, the ions become phase locked with respect to the electromagnetic wave resulting in unlimited ion energy gain.
Squier, J.*; Guo, T.*; LeBlanc, C.*; Korn, G.*; Rose-Petruck, C.*; Rksi, F.*; Yakovlev, V. V.*; 山川 考一; Barty, C. P. J.*
Ultrafast Phenomena 10; Springer Series in Chemical Physics 62, p.87 - 89, 1996/00
近年、急速な勢いで進展を続ける極短パルス・超高出力レーザーシステムの開発研究において、これまで短パルス化の障壁となっていたレーザー増幅器の利得狭帯化の制御方法として新たに提案した「再生パルス成形技術」について発表を行う。この手法により、これまで得られていたレーザー光のスペクトル幅の約2倍のバンド幅を有する増幅パルスの生成に成功し、この増幅パルスを圧縮することにより、最短18フェムト秒のテラワットレーザーパルスが発生された。
中村 龍史; Koga, J. K.; Esirkepov, T. Z.; 神門 正城; Korn, G.*; Bulanov, S. V.
no journal, ,
ペタワットを超えるレーザーと物質との相互作用では、電子運動における放射反作用の効果が無視できなくなる。放射反作用効果は、電子エネルギーの散逸を引き起こしそれが線領域の光として放出される。このような線の特性を解明するため、粒子コードに放射反作用効果を取り込み解析を行った。その結果、パラメータを適切に選ぶことで、短パスルかつ指向性を持った線が発生できることが明らかとなった。光子数,パルス長等の特性を制御可能であることを示し、レーザー駆動線源の提案を行った。