We experimentally demonstrate a new regime of high-order harmonic generation by relativistic-irradiance lasers in gas jet targets. Bright harmonics with both odd and even orders, generated by linearly as well as circularly polarized pulses, are emitted in the forward direction, while the base harmonic frequency is downshifted. A 9 TW laser generates harmonics up to 360 eV, within the 'water window' spectral region. With a 120 TW laser producing 40 uJ/sr per harmonic at 120 eV, we demonstrate the photon number scalability. The observed harmonics cannot be explained by previously suggested scenarios. A novel high-order harmonics generation mechanism [T. Zh. Esirkepov et al., AIP Proceedings, this volume], which explains our experimental findings, is based on the phenomena inherent in the relativistic laser - underdense plasma interactions (self-focusing, cavity evacuation, and bow wave generation), mathematical catastrophe theory which explains formation of electron density singularities (cusps), and collective radiation due to nonlinear oscillations of a compact charge.
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11 July 2012
LASER-DRIVEN RELATIVISTIC PLASMAS APPLIED TO SCIENCE, ENERGY, INDUSTRY, AND MEDICINE: The 3rd International Symposium
30 May–2 June 2011
Kyoto, Japan
Research Article|
July 11 2012
Relativistic high harmonic generation in gas jet targets
A. S. Pirozhkov;
A. S. Pirozhkov
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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M. Kando;
M. Kando
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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T. Zh. Esirkepov;
T. Zh. Esirkepov
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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P. Gallegos;
P. Gallegos
Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX Oxfordshire, UK and Department of Physics, SUPA, University of Strathclyde, G4 0NG Glasgow,
United Kingdom
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H. Ahmed;
H. Ahmed
Centre for Plasma Physics, The Queen's University Belfast, BT7 1NN Belfast,
United Kingdom
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E. N. Ragozin;
E. N. Ragozin
P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninsky Prospekt, 119991 Moscow, Russia and Moscow Institute of Physics and Technology (State University), 9 Institutskii pereulok, 141700 Dolgoprudnyi, Moscow Region,
Russia
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A. Ya. Faenov;
A. Ya. Faenov
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto, Japan and Joint Institute for High Temperatures, Russian Academy of Sciences, 13/19 Izhorskaja street, 127412 Moscow,
Russia
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T. A. Pikuz;
T. A. Pikuz
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto, Japan and Joint Institute for High Temperatures, Russian Academy of Sciences, 13/19 Izhorskaja street, 127412 Moscow,
Russia
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T. Kawachi;
T. Kawachi
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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A. Sagisaka;
A. Sagisaka
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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J. K. Koga;
J. K. Koga
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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M. Coury;
M. Coury
Department of Physics, SUPA, University of Strathclyde, G4 0NG Glasgow,
United Kingdom
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J. Green;
J. Green
Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX Oxfordshire,
United Kingdom
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P. Foster;
P. Foster
Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX Oxfordshire,
United Kingdom
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C. Brenner;
C. Brenner
Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX Oxfordshire, UK and Department of Physics, SUPA, University of Strathclyde, G4 0NG Glasgow,
United Kingdom
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B. Dromey;
B. Dromey
Centre for Plasma Physics, The Queen's University Belfast, BT7 1NN Belfast,
United Kingdom
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D. R. Symes;
D. R. Symes
Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX Oxfordshire,
United Kingdom
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M. Mori;
M. Mori
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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K. Kawase;
K. Kawase
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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T. Kameshima;
T. Kameshima
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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Y. Fukuda;
Y. Fukuda
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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L. M. Chen;
L. M. Chen
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto, Japan and Beijing National Laboratory of Condensed Matter Physics, Institute of Physics of the Chinese Academy of Sciences, 100080 Beijing,
China
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I. Daito;
I. Daito
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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K. Ogura;
K. Ogura
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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Y. Hayashi;
Y. Hayashi
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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H. Kotaki;
H. Kotaki
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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H. Kiriyama;
H. Kiriyama
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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H. Okada;
H. Okada
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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N. Nishimori;
N. Nishimori
Laser Application Technology Division, Japan Atomic Energy Agency, 2-4 Shirakata-Shirane, Tokai, 319-1195 Ibaraki,
Japan
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T. Imazono;
T. Imazono
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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K. Kondo;
K. Kondo
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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T. Kimura;
T. Kimura
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto,
Japan
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T. Tajima;
T. Tajima
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto, Japan and Faculty of Physics, Ludwig-Maximillians-Universität München, 85748 Garching,
Germany
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H. Daido;
H. Daido
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto, Japan and Applied Laser Technology Institute, Tsuruga Head Office, Japan Atomic Energy Agency, Kizaki, Tsuruga, 914-8585 Fukui,
Japan
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P. Rajeev;
P. Rajeev
Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX Oxfordshire,
United Kingdom
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P. McKenna;
P. McKenna
Department of Physics, SUPA, University of Strathclyde, G4 0NG Glasgow,
United Kingdom
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M. Borghesi;
M. Borghesi
Centre for Plasma Physics, The Queen's University Belfast, BT7 1NN Belfast,
United Kingdom
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D. Neely;
D. Neely
Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX Oxfordshire, UK and Department of Physics, SUPA, University of Strathclyde, G4 0NG Glasgow,
United Kingdom
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Y. Kato;
Y. Kato
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto, Japan and The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsu-cho, Nishiku, Hamamatsu, 431-1202 Shizuoka,
Japan
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S. V. Bulanov
S. V. Bulanov
Advanced Beam Technology Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, 916-0215 Kyoto, Japan and Moscow Institute of Physics and Technology (State University), 9 Institutskii pereulok, 141700 Dolgoprudnyi, Moscow Region, Russia and,
Russia
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AIP Conf. Proc. 1465, 167–171 (2012)
Citation
A. S. Pirozhkov, M. Kando, T. Zh. Esirkepov, P. Gallegos, H. Ahmed, E. N. Ragozin, A. Ya. Faenov, T. A. Pikuz, T. Kawachi, A. Sagisaka, J. K. Koga, M. Coury, J. Green, P. Foster, C. Brenner, B. Dromey, D. R. Symes, M. Mori, K. Kawase, T. Kameshima, Y. Fukuda, L. M. Chen, I. Daito, K. Ogura, Y. Hayashi, H. Kotaki, H. Kiriyama, H. Okada, N. Nishimori, T. Imazono, K. Kondo, T. Kimura, T. Tajima, H. Daido, P. Rajeev, P. McKenna, M. Borghesi, D. Neely, Y. Kato, S. V. Bulanov; Relativistic high harmonic generation in gas jet targets. AIP Conf. Proc. 11 July 2012; 1465 (1): 167–171. https://doi.org/10.1063/1.4737557
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