Following the Birth of a Nanoplasma Produced by an Ultrashort Hard-X-Ray Laser in Xenon Clusters
| Autor: | Kazuki Asa, Tsukasa Takanashi, G. Kastirke, Christophe Nicolas, Yuta Sakakibara, Tetsuo Katayama, Shin-ichi Wada, Takayuki Umemoto, Markus Schöffler, Nikolay V. Golubev, Yuta Ito, Catalin Miron, Kango Kariyazono, Y. Sato, Kensuke Tono, Tadashi Togashi, Yoshiaki Kumagai, Koji Motomura, Makina Yabashi, Kuno Kooser, Toshiyuki Nishiyama, Shigeki Owada, Alexander I. Kuleff, Kiyoshi Ueda, D. Iablonskyi, Hironobu Fukuzawa, Liviu Neagu, Edwin Kukk, Daehyun You, Xiao-Jing Liu, Theodor Asavei, Kiyonobu Nagaya, Kirill Gokhberg, Lorenz S. Cederbaum |
|---|---|
| Přispěvatelé: | Graduate school of science, Hiroshima International University, Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Laboratoire Interactions, Dynamiques et Lasers (ex SPAM) (LIDyl), Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), The University of Queensland, University of Queensland [Brisbane], National Institute for Plasma and Radiation Physics (NILPRP), Centre de recherche, RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), Physikalisch-Chemisches Institut [Heidelberg] (PCI), Universität Heidelberg [Heidelberg], IMRAM, Tohoku University [Sendai], Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Universität Heidelberg [Heidelberg] = Heidelberg University |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
[PHYS]Physics [physics]
Materials science ta114 Astrophysics::High Energy Astrophysical Phenomena Physics QC1-999 General Physics and Astronomy chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences X-ray laser Xenon chemistry 0103 physical sciences Physics::Atomic and Molecular Clusters Atomic physics 010306 general physics 0210 nano-technology |
| Zdroj: | Physical Review X Physical Review X, American Physical Society, 2018, 8 (3), ⟨10.1103/PhysRevX.8.031034⟩ Physical Review X, 2018, 8 (3), ⟨10.1103/PhysRevX.8.031034⟩ Physical Review X, Vol 8, Iss 3, p 031034 (2018) |
| ISSN: | 2160-3308 |
| Popis: | X-ray free-electron lasers (XFELs) made available a new regime of x-ray intensities, revolutionizing the ultrafast structure determination and laying the foundations of the novel field of nonlinear x-ray optics. Although earlier studies revealed nanoplasma formation when an XFEL pulse interacts with any nanometer-scale matter, the formation process itself has never been decrypted and its timescale was unknown. Here we show that time-resolved ion yield measurements combined with a near-infrared laser probe reveal a surprisingly ultrafast population (∼ 12 fs), followed by a slower depopulation (∼ 250 fs) of highly excited states of atomic fragments generated in the process of XFEL-induced nanoplasma formation. Inelastic scattering of Auger electrons and interatomic Coulombic decay are suggested as the mechanisms populating and depopulating, respectively, these excited states. The observed response occurs within the typical x-ray pulse durations and affects x-ray scattering, thus providing key information on the foundations of x-ray imaging with XFELs. プラズマ誕生の瞬間を観測 --X線自由電子レーザー照射によるプラズマ生成機構を解明--. 京都大学プレスリリース. 2018-09-20. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|