Ultrabright x-ray harmonic comb by relativistic plasma singularity

2017 Fiscal Year Annual Research Report

• Project/Area Number: 26707031
• Research Institution: National Institutes for Quantum and Radiological Science and Technology
• Principal Investigator: PIROZHKOV Alex 国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所 光量子科学研究部, 上席研究員(定常) (00446410)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: BISER / コヒーレントX線放射 / レーザー光の高次高調波 / 相対論的電子スパイク / レーザー光とプラズマの相互作用 / 超高強度レーザー / 相対論的プラズマ

Outline of Annual Research Achievements

In FY2017 I made a very good progress in research on ultra-bright x-ray harmonic comb by relativistic plasma singularity. I achieved the Project goals: Using innovative approach, I demonstrated control of x-ray harmonic comb with the peak spectral brightness up to 10^27 photons/mm^2 mrad^2 s 0.1%BW, which is between synchrotrons and XFELs.

In the new regime discovered by us the harmonics are coherently generated by the Burst Intensification by Singularity Emitting Radiation (BISER) effect, where extremely sharp electron spikes (density singularities), emitting bright coherent x-rays, are produced by multi-TW femtosecond lasers focused to gas jets at irradiances >10^18 W/cm^2.
Using a shock wave generated in a supersonic gas jet by a blade, I tailored the gas density profile, creating density up-jump. This resulted in controllable, low-jitter x-ray source and higher x-ray yield. My results represent an important step towards a next-generation bright compact coherent x-ray source, and demonstrate a new technique of relativistic self-focusing control and its diagnostics.
I published these results in 6 papers, including 3 first-author ones: BISER discovery [Pirozhkov, Esirkepov, et al, Scientific Reports (2017)]; BISER harmonics dependence on laser parameters [Pirozhkov et al, QuBS (2018)], and Approaching diffraction-limited, bandwidth-limited Petawatt for efficient harmonic generation [Pirozhkov et al, Opt. Express (2017)].
I made 9 presentations on this research (international: 1 invited, 1 oral & 1 poster; domestic: 1 invited, 3 oral & 2 poster).

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Causes of Carryover

29年度が最終年度であるため、記入しない。

Expenditure Plan for Carryover Budget

29年度が最終年度であるため、記入しない。

Remarks

QST Press Release on publication of our paper "Burst intensification by singularity emitting radiation in multi-stream flows" in Scientific Reports

Research Products

• [Journal Article] High-contrast high-intensity repetitive petawatt laser (2018)
  • Author(s): H. Kiriyama, A. S. Pirozhkov, M. Nishiuchi, Y. Fukuda, K. Ogura, A. Sagisaka, Y. Miyasaka, M. Mori, H. Sakaki, N. P. Dover, K. Kondo, J. K. Koga, T. Zh. Esirkepov, M. Kando, K. Kondo
  • Journal Title: Optics Letters Volume: In press Pages: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Coherent, Short-Pulse X-ray Generation via Relativistic Flying Mirrors (2018)
  • Author(s): Kando Masaki、Esirkepov Timur、Koga James、Pirozhkov Alexander、Bulanov Sergei
  • Journal Title: Quantum Beam Science Volume: 2 Pages: 9-1~9-11
  • DOI: 10.3390/qubs2020009
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Laser Requirements for High-Order Harmonic Generation by Relativistic Plasma Singularities (2018)
  • Author(s): Pirozhkov A.、Esirkepov T.、Pikuz T.、Faenov A.、Sagisaka A.、Ogura K.、Hayashi Y.、Kotaki H.、Ragozin E.、Neely D.、Koga J.、Fukuda Y.、Nishikino M.、Imazono T.、Hasegawa N.、Kawachi T.、Daido H.、Kato Y.、Bulanov S.、Kondo K.、Kiriyama H.、Kando M.
  • Journal Title: Quantum Beam Science Volume: 2 Pages: 7-1~7-11
  • DOI: 10.3390/qubs2010007
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Burst intensification by singularity emitting radiation in multi-stream flows (2017)
  • Author(s): Pirozhkov A. S.、Esirkepov T. Zh.、Pikuz T. A.、Faenov A. Ya.、Ogura K.、Hayashi Y.、Kotaki H.、Ragozin E. N.、Neely D.、Kiriyama H.、Koga J. K.、Fukuda Y.、Sagisaka A.、Nishikino M.、Imazono T.、Hasegawa N.、Kawachi T.、Bolton P. R.、Daido H.、Kato Y.、Kondo K.、Bulanov S. V.、Kando M.
  • Journal Title: Scientific Reports Volume: 7 Pages: 17968-1~10
  • DOI: 10.1038/s41598-017-17498-5
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High resolution X-ray spectra of stainless steel foils irradiated by femtosecond laser pulses with ultra-relativistic intensities (2017)
  • Author(s): Alkhimova M. A.、Faenov A. Ya.、Skobelev I. Yu.、Pikuz T. A.、Nishiuchi M.、Sakaki H.、Pirozhkov A. S.、Sagisaka A.、Dover N. P.、Kondo Ko.、Ogura K.、Fukuda Y.、Kiriyama H.、Nishitani K.、Miyahara T.、Watanabe Y.、Pikuz S. A.、Kando M.、Kodama R.、Kondo K.
  • Journal Title: Optics Express Volume: 25 Pages: 29501～29511
  • DOI: 10.1364/OE.25.029501
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Approaching the diffraction-limited, bandwidth-limited Petawatt (2017)
  • Author(s): Pirozhkov Alexander S.、Fukuda Yuji、Nishiuchi Mamiko、Kiriyama Hiromitsu、Sagisaka Akito、Ogura Koichi、Mori Michiaki、Kishimoto Maki、Sakaki Hironao、Dover Nicholas P.、Kondo Kotaro、Nakanii Nobuhiko、Huang Kai、Kanasaki Masato、Kondo Kiminori、Kando Masaki
  • Journal Title: Optics Express Volume: 25 Pages: 20486～20501
  • DOI: 10.1364/OE.25.020486
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] BISER: A New Tool for Laboratory Astrophysics (2018)
  • Author(s): A. S. Pirozhkov, T. Zh. Esirkepov, A. Sagisaka, K. Ogura, J. K. Koga, B. Gonzalez-Izquierdo, T. A. Pikuz, E. N. Ragozin, D. Neely, H. Kiriyama, K. Kondo, T. Kawachi, S. V. Bulanov, and M. Kando
  • Organizer: International Conference on High Energy Density Laboratory Astrophysics (HEDLA)
  • Int'l Joint Research
• [Presentation] Burst Intensification by Singularity Emitting Radiation (BISER) in multi-stream flows (2018)
  • Author(s): A.S. Pirozhkov, T.Zh. Esirkepov, T.A. Pikuz, A.Ya. Faenov, K. Ogura, A. Sagisaka, J. K. Koga, E.N. Ragozin, D. Neely, N. Nakanii, K. Huang, Y. Hayashi, H. Kotaki, Y. Fukuda, S. Namba, I. Daito, M. Nishikino, T. Imazono, N. Hasegawa, H. Kiriyama, P.R.Bolton, H. Daido, Y. Kato, K. Kondo, T. Kawachi, S.V.Bulanov, M. Kando
  • Organizer: Opto-2018 Symposium on Photon and Beam Science
• [Presentation] Control of Burst Intensification by Singularity Emitting Radiation (BISER) with density jump (2018)
  • Author(s): A. S. Pirozhkov, T. Zh. Esirkepov, A. Sagisaka, K. Ogura, N. Nakanii, H. Kai, T. A. Pikuz, A. Ya. Faenov, S. Namba, I. Daito, Y. Fukuda, J. K. Koga, H. Kiriyama, K. Kondo, T. Kawachi, M. Kando
  • Organizer: The Optics & Photonics International Congress OPIC-2018, International Conference on High-Energy Density Sciences HEDS-2018
  • Int'l Joint Research / Invited
• [Presentation] Relativistic plasma singularity and its coherent x-ray emission control using density jump (2018)
  • Author(s): A. S. Pirozhkov, T. Zh. Esirkepov, A. Sagisaka, K. Ogura, N. Nakanii, K. Huang, T. A. Pikuz, A. Ya. Faenov, S. Namba, Y. Fukuda, J. K. Koga, H. Kiriyama, K. Kondo, T. Kawachi, and M. Kando
  • Organizer: JPS Spring Meeting
• [Presentation] Plasma density jump for the control of coherent x-ray emission via BISER mechanism (2018)
  • Author(s): A. S. Pirozhkov, T. Zh. Esirkepov, A. Sagisaka, K. Ogura, N. Nakanii, K. Huang, T. A. Pikuz, A. Ya. Faenov, S. Namba, I. Daito, Y. Fukuda, J. K. Koga, H. Kiriyama, K. Kondo, T. Kawachi, and M. Kando
  • Organizer: JSAP Spring Meeting
• [Presentation] Point-like coherent soft x-ray sources and challenges for optics (2017)
  • Author(s): A. S. Pirozhkov, T. Zh. Esirkepov, A. Sagisaka, K. Ogura, T. A. Pikuz, A. Ya. Faenov, J. K. Koga, H. Kiriyama, E. N. Ragozin, D. Neely, H. Daido, Y. Kato, S. V. Bulanov, K. Kondo, T. Kawachi, and M. Kando
  • Organizer: The 14th Symposium on X-ray Imaging Optics
  • Invited
• [Presentation] J-KAREN-P Laser: Approaching the diffraction-limited, bandwidth-limited Petawatt (2017)
  • Author(s): A. S. Pirozhkov, Y. Fukuda, M. Nishiuchi, H. Kiriyama, A. Sagisaka, K. Ogura, M. Mori, M. Kishimoto, H. Sakaki, N. P. Dover, K. Kondo, N. Nakanii, K. Huang, M. Kanasaki, K. Kondo, and M. Kando
  • Organizer: Japan-US Technical Meeting on High Energy Density Sciences
  • Int'l Joint Research
• [Presentation] Ultrahigh-Resolution Imaging of Bio-Samples with Modern and Future Ultrabright X-Ray Sources: the Source and Method Requirements (2017)
  • Author(s): A. S. Pirozhkov
  • Organizer: The 1st QST International Symposium "Quantum Life Science"
  • Int'l Joint Research
• [Presentation] Characterization of the J-KAREN-P laser spot at 300 TW and pulse shape at full beam diameter (2017)
  • Author(s): A. S. Pirozhkov, Y. Fukuda, M. Nishiuchi, H. Kiriyama, A. Sagisaka, K. Ogura, M. Mori, M. Kishimoto, H. Sakaki, N. P. Dover, K. Kondo, N. Nakanii, K. Huang, M. Kanasaki, K. Kondo, and M. Kando
  • Organizer: Opto 2017 Symposium on Photon and Beam Science
• [Remarks] プラズマの特異点からの強力な軟X線バーストを発見 －宇宙でも起こり得る普遍的な新しい放射機構の提案－
  • URL: http://www.qst.go.jp/information/itemid034-003332.html