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26Complex Systems of Charged Particles and their Interactions with Electromagnetic Radiation 2019
DISCOVERY OF BURST INTENSIFICATION BY SINGULARITY EMITTING
RADIATION (BISER)
A.S. Pirozhkov1, T.Zh. Esirkepov1, A.Ya. Faenov2,3, T.A. Pikuz2,3, A. Sagisaka1, K. Ogura1, J.K. Koga1, H. Kiriyama1, Y. Fukuda1, E. N. Ragozin4,5, D. Neely6,7, K. Kondo1, T. Kawachi1, H. Daido8, Y. Kato9, M. Kando1, S. V. Bulanov1,10, 11
1Kansai Photon Science Institute, QST, Kizugawa, Kyoto, Japan Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka, Japan 3Joint Institute for High Temperatures of the Russian Academy of Sciences, Moscow, Russia 4P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia 5Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Russia 6Central Laser Facility, Rutherford Appleton Laboratory, STFC, Didcot, UK 7Department of Physics, SUPA, University of Strathclyde, Glasgow, UK
o
Institute for Laser Technology, Osaka, Japan 9The Graduate School for the Creation of New Photonics Industries, Hamamatsu, Shizuoka, Japan 10Institute of Physics ASCR, v.v.i. (FZU), ELI-Beamlines Project, Dolni Brezany, Czech Republic 11Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
We discovered ultra-bright, spatially and temporally coherent x-rays emitted from an underdense relativistic plasma driven by multi-terawatt femtosecond lasers [1]-[3]. Previously known models could not explain the experimentally observed properties. Based on the PIC simulations with the code REMP [4], theory of intense laser-plasma interaction, and catastrophe theory, we suggested a new x-ray generation mechanism which explained the observations and predicted that this coherent radiation is generated by point-like x-ray sources: the relativistic plasma singularities.
Apart from the prediction of nano-scale sources, the theory further predicted bright off-axis x-ray emission and a double point-like source aligned along the electric laser field in the case of linear driver polarization. Direct imaging of these point-like x-ray sources at the off-axis angle from 8 to 13° with a high-resolution LiF detector [5],[6] confirmed all these predictions and validated our mechanism [5]. We generalized our findings and formulated the Burst Intensification by Singularity Emitting Radiation (BISER) concept applicable to travelling waves of any nature [5].
Here we overview our discovery and the reasons why it was overlooked for more than four decades, including the required driving laser parameters [6]-[8].
References
[1] A. S. Pirozhkov, et al. 2012 Physical Review Letters 108 (13) 135004.
[2] T. Pikuz, A. Faenov, et al. 2012 Physica Status Solidi C 9 (12) 2331.
[3] A. S. Pirozhkov, et al. 2014 New Journal of Physics 16 (9) 093003.
[4] T. Zh. Esirkepov 2001 Computer Physics Communications 135 (2) 144.
[5] T. Pikuz, A. Faenov, et al. 2012 Optics Express 20 (4) 3424.
[6] A. Ya. Faenov, T. A. Pikuz, et al. 2018 Scientific Reports 8, 16407.
[7] A. S. Pirozhkov, T. Zh. Esirkepov, et al. 2017 Scientific Reports 7, 17968.
[8] A. S. Pirozhkov, et al. 2018 Quantum Beam Science 2, 7.
[9] A. S. Pirozhkov, et al. 2017 Optics Express 25 (17) 20486.
[10] H. Kiriyama, et al. 2018 Optics Letters 43 (11) 2595.
