Ionization dynamics in expanding clusters studied by XUV pump–probe spectroscopy
Ionization dynamics in expanding clusters studied by XUV pump–probe spectroscopy
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XUV泵浦探针光谱研究膨胀团簇的电离动力学
DOI:
10.1088/0953-4075/45/10/105101
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
M. Krikunova
中科院分区:
文献类型:
--
作者:
M. Krikunova
The expansion and disintegration dynamics of xenon clusters initiated by the ionization with femtosecond soft x-ray extreme ultraviolet (XUV) pulses were studied with pump–probe spectroscopy using the autocorrelator setup of the Free-Electron LASer in Hamburg (FLASH) facility. The ionization by the first XUV pulse of 92 eV photon energy (8× 10 12 W cm− 2) leads to the generation of a large number of quasi-free electrons trapped by the space charge of the cluster ions. A temporally delayed, more intense probe (4× 10 13 W cm− 2) pulse substantially increases a population of nanoplasma electrons providing a way of probing plasma states in the expanding cluster by tracing the average charge of fragment ions. The results of the study reveal a timescale for cluster expansion and disintegration, which depends essentially on the initial cluster size. The average charge state of fragment ions, and thus the cluster plasma changes significantly on a timescale of 1–3 ps.
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影响因子:
35
作者:
Fruehling, Ulrike;Wieland, Marek;Drescher, Markus
通讯作者:
Drescher, Markus
DOI:
10.1088/0953-4075/44/17/175602
发表时间:
2011-08
期刊:
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子:
--
作者:
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通讯作者:
S. Fritzsche;A. Grum-Grzhimailo;E. Gryzlova;N. M. Kabachnik
影响因子:
8.6
作者:
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通讯作者:
Moeller, T.
DOI:
10.1088/0953-4075/43/19/194012
发表时间:
2010
期刊:
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子:
--
作者:
U. Saalmann
通讯作者:
U. Saalmann
影响因子:
2.9
作者:
Kumarappan, V;Krishnamurthy, M;Mathur, D
通讯作者:
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