A2 Vertaisarvioitu katsausartikkeli tieteellisessä lehdessä
Ultrafast Structural Dynamics of Nanoparticles in Intense Laser Fields
Tekijät: Nishiyama T, Kumagai Y, Niozu A, Fukuzawa H, Motomura K, Bucher M, Ito Y, Takanashi T, Asa K, Sato Y, You D, Li YW, Ono T, Kukk E, Miron C, Neagu L, Callegari C, Di Fraia M, Rossi G, Galli DE, Pincelli T, Colombo A, Kameshima T, Joti Y, Hatsui T, Owada S, Katayama T, Togashi T, Tono K, Yabashi M, Matsuda K, Bostedt C, Nagaya K, Ueda K, Ueda K
Kustantaja: AMER PHYSICAL SOC
Kustannuspaikka: COLLEGE PK, MD
Julkaisuvuosi: 2019
Journal: Physical Review Letters
Tietokannassa oleva lehden nimi: PHYSICAL REVIEW LETTERS
Lehden akronyymi: PHYS REV LETT
Artikkelin numero: ARTN 123201
Vuosikerta: 123
Numero: 12
Sivujen määrä: 6
ISSN: 0031-9007
eISSN: 1079-7114
DOI: https://doi.org/10.1103/PhysRevLett.123.123201
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.
