Ultrafast Structural Dynamics of Nanoparticles in Intense Laser Fields

Femtosecond laser pulses have opened new frontiers for the study of ultrafast phase transitions and nonequilibrium states of matter. In this Letter, we report on structural dynamics in atomic clusters pumped with intense near-infrared (NIR) pulses into a nanoplasma state. Employing wide-angle scatte...

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Bibliographic Details
Published in:Physical review letters 2019-09, Vol.123 (12), p.1-123201, Article 123201
Main Authors: Nishiyama, Toshiyuki, Kumagai, Yoshiaki, Niozu, Akinobu, Fukuzawa, Hironobu, Motomura, Koji, Bucher, Maximilian, Ito, Yuta, Takanashi, Tsukasa, Asa, Kazuki, Sato, Yuhiro, You, Daehyun, Li, Yiwen, Ono, Taishi, Kukk, Edwin, Miron, Catalin, Neagu, Liviu, Callegari, Carlo, Di Fraia, Michele, Rossi, Giorgio, Galli, Davide E., Pincelli, Tommaso, Colombo, Alessandro, Kameshima, Takashi, Joti, Yasumasa, Hatsui, Takaki, Owada, Shigeki, Katayama, Tetsuo, Togashi, Tadashi, Tono, Kensuke, Yabashi, Makina, Matsuda, Kazuhiro, Bostedt, Christoph, Nagaya, Kiyonobu, Ueda, Kiyoshi
Format: Article
Language:English
Subjects:
Atomic clusters
Bulk density
Chemical Physics
Chemical Sciences
Femtosecond pulses
Free electron lasers
Lasers
Mechanics
Mechanics of materials
Nanoparticles
or physical chemistry
Phase transitions
Physics
Theoretical and
Xenon
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Summary:Femtosecond laser pulses have opened new frontiers for the study of ultrafast phase transitions and nonequilibrium states of matter. In this Letter, we report on structural dynamics in atomic clusters pumped with intense near-infrared (NIR) pulses into a nanoplasma state. Employing wide-angle scattering with intense femtosecond x-ray pulses from a free-electron laser source, we find that highly excited xenon nanoparticles retain their crystalline bulk structure and density in the inner core long after the driving NIR pulse. The observed emergence of structural disorder in the nanoplasma is consistent with a propagation from the surface to the inner core of the clusters.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.123.123201