Using electron spectroscopy, we investigated the nanoplasma formation process generated in xenon clusters by intense soft x-ray free electron laser (FEL) pulses. We found clear FEL intensity dependence of electron spectra. Multistep ionization and subsequent ionization frustration features are evident for the low FEL-intensity region, and the thermal electron emission emerges at the high FEL intensity. The present FEL intensity dependence of the electron spectra is well addressed by the frustration parameter introduced by Arbeiter and Fennel [New J. Phys. 13, 053022 (2011)].

1.
H.
Wabnitz
,
L.
Bittner
,
A. R. B.
de Castro
,
R.
Döhrmann
,
P.
Gürtler
,
T.
Laarmann
,
W.
Laasch
,
J.
Schulz
,
A.
Swiderski
,
K.
von Haeften
,
T.
Möller
,
B.
Faatz
,
A.
Fateev
,
J.
Feldhaus
,
C.
Gerth
,
U.
Hahn
,
E.
Saldin
,
E.
Schneidmiller
,
K.
Sytchev
,
K.
Tiedtke
,
R.
Treusch
, and
M.
Yurkov
, “
Multiple ionization of atom clusters by intense soft X-rays from a free-electron laser
,”
Nature
420
,
482
485
(
2002
).
2.
T.
Laarmann
,
M.
Rusek
,
H.
Wabnitz
,
J.
Schulz
,
A. R. B.
De Castro
,
P.
Gürtler
,
W.
Laasch
, and
T.
Möller
, “
Emission of thermally activated electrons from rare gas clusters irradiated with intense VUV light pulses from a free electron laser
,”
Phys. Rev. Lett.
95
,
063402
(
2005
).
3.
M.
Hoener
,
C.
Bostedt
,
H.
Thomas
,
L.
Landt
,
E.
Eremina
,
H.
Wabnitz
,
T.
Laarmann
,
R.
Treusch
,
A. R. B.
de Castro
, and
T.
Möller
, “
Charge recombination in soft x-ray laser produced nanoplasmas
,”
J. Phys. B: At., Mol. Opt. Phys.
41
,
181001
(
2008
).
4.
B.
Schütte
,
M.
Arbeiter
,
T.
Fennel
,
M. J. J.
Vrakking
, and
A.
Rouzée
, “
Rare-gas clusters in intense extreme-ultraviolet pulses from a high-order harmonic source
,”
Phys. Rev. Lett.
112
,
073003
(
2014
).
5.
H.
Iwayama
,
K.
Nagaya
,
M.
Yao
,
H.
Fukuzawa
,
X.-J.
Liu
,
G.
Prümper
,
M.
Okunishi
,
K.
Shimada
,
K.
Ueda
,
T.
Harada
,
M.
Toyoda
,
M.
Yanagihara
,
M.
Yamamoto
,
K.
Motomura
,
N.
Saito
,
A.
Rudenko
,
J.
Ullrich
,
L.
Foucar
,
A.
Czasch
,
R.
Dörner
,
M.
Nagasono
,
A.
Higashiya
,
M.
Yabashi
,
T.
Ishikawa
,
H.
Ohashi
, and
H.
Kimura
, “
Frustration of direct photoionization of Ar clusters in intense extreme ultraviolet pulses from a free electron laser
,”
J. Phys. B: At., Mol. Opt. Phys.
42
,
134019
(
2009
).
6.
A.
Sugishima
,
H.
Iwayama
,
S.
Yase
,
H.
Murakami
,
K.
Nagaya
,
M.
Yao
,
H.
Fukuzawa
,
X.-J.
Liu
,
K.
Motomura
,
K.
Ueda
,
N.
Saito
,
L.
Foucar
,
A.
Rudenko
,
M.
Kurka
,
K.-U.
Kühnel
,
J.
Ullrich
,
A.
Czasch
,
R.
Dörner
,
R.
Feifel
,
M.
Nagasono
,
A.
Higashiya
,
M.
Yabashi
,
T.
Ishikawa
,
T.
Togashi
,
H.
Kimura
, and
H.
Ohashi
, “
Charge and energy transfer in argon-core-neon-shell clusters irradiated by free-electron-laser pulses at 62 nm
,”
Phys. Rev. A
86
,
033203
(
2012
).
7.
T.
Tachibana
,
Z.
Jurek
,
H.
Fukuzawa
,
K.
Motomura
,
K.
Nagaya
,
S.
Wada
,
P.
Johnsson
,
M.
Siano
,
S.
Mondal
,
Y.
Ito
,
M.
Kimura
,
T.
Sakai
,
K.
Matsunami
,
H.
Hayashita
,
J.
Kajikawa
,
X.-J.
Liu
,
E.
Robert
,
C.
Miron
,
R.
Feifel
,
J. P.
Marangos
,
K.
Tono
,
Y.
Inubushi
,
M.
Yabashi
,
S.-K.
Son
,
B.
Ziaja
,
M.
Yao
,
R.
Santra
, and
K.
Ueda
, “
Nanoplasma formation by high intensity hard x-rays
,”
Sci. Rep.
5
,
10977
(
2015
).
8.
M.
Müller
,
L.
Schroedter
,
T.
Oelze
,
L.
Nösel
,
A.
Przystawik
,
A.
Kickermann
,
M.
Adolph
,
T.
Gorkhover
,
L.
Flückiger
,
M.
Krikunova
,
M.
Sauppe
,
Y.
Ovcharenko
,
S.
Schorb
,
C.
Bostedt
,
D.
Rupp
,
T.
Laarmann
, and
T.
Möller
, “
Ionization dynamics of XUV excited clusters: The role of inelastic electron collisions
,”
J. Phys. B: At., Mol. Opt. Phys.
48
,
174002
(
2015
).
9.
L.
Schroedter
,
M.
Müller
,
A.
Kickermann
,
A.
Przystawik
,
S.
Toleikis
,
M.
Adolph
,
L.
Flückiger
,
T.
Gorkhover
,
L.
Nösel
,
M.
Krikunova
,
T.
Oelze
,
Y.
Ovcharenko
,
D.
Rupp
,
M.
Sauppe
,
D.
Wolter
,
S.
Schorb
,
C.
Bostedt
,
T.
Möller
, and
T.
Laarmann
, “
Hidden charge states in soft-x-ray laser-produced nanoplasmas revealed by fluorescence spectroscopy
,”
Phys. Rev. Lett.
112
,
183401
(
2014
).
10.
D.
Rupp
,
M.
Adolph
,
T.
Gorkhover
,
S.
Schorb
,
D.
Wolter
,
R.
Hartmann
,
N.
Kimmel
,
C.
Reich
,
T.
Feigl
,
A. R. B.
de Castro
,
R.
Treusch
,
L.
Strüder
,
T.
Möller
, and
C.
Bostedt
, “
Identification of twinned gas phase clusters by single-shot scattering with intense soft x-ray pulses
,”
New J. Phys.
14
,
055016
(
2012
).
11.
T.
Gorkhover
,
M.
Adolph
,
D.
Rupp
,
S.
Schorb
,
S. W.
Epp
,
B.
Erk
,
L.
Foucar
,
R.
Hartmann
,
N.
Kimmel
,
K.-U.
Kühnel
,
D.
Rolles
,
B.
Rudek
,
A.
Rudenko
,
R.
Andritschke
,
A.
Aquila
,
J. D.
Bozek
,
N.
Coppola
,
T.
Erke
,
F.
Filsinger
,
H.
Gorke
,
H.
Graafsma
,
L.
Gumprecht
,
G.
Hauser
,
S.
Herrmann
,
H.
Hirsemann
,
A.
Hömke
,
P.
Holl
,
C.
Kaiser
,
F.
Krasniqi
,
J.-H.
Meyer
,
M.
Matysek
,
M.
Messerschmidt
,
D.
Miessner
,
B.
Nilsson
,
D.
Pietschner
,
G.
Potdevin
,
C.
Reich
,
G.
Schaller
,
C.
Schmidt
,
F.
Schopper
,
C. D.
Schröter
,
J.
Schulz
,
H.
Soltau
,
G.
Weidenspointner
,
I.
Schlichting
,
L.
Strüder
,
J.
Ullrich
,
T.
Möller
, and
C.
Bostedt
, “
Nanoplasma dynamics of single large xenon clusters irradiated with superintense x-ray pulses from the linac coherent light source free-electron laser
,”
Phys. Rev. Lett.
108
,
245005
(
2012
).
12.
B.
Schütte
,
M.
Arbeiter
,
T.
Fennel
,
G.
Jabbari
,
A. I.
Kuleff
,
M. J. J.
Vrakking
, and
A.
Rouzée
, “
Observation of correlated electronic decay in expanding clusters triggered by near-infrared fields
,”
Nat. Commun.
6
,
8596
(
2015
).
13.
K.
Nagaya
,
D.
Iablonskyi
,
N. V.
Golubev
,
K.
Matsunami
,
H.
Fukuzawa
,
K.
Motomura
,
T.
Nishiyama
,
T.
Sakai
,
T.
Tachibana
,
S.
Mondal
,
S.
Wada
,
K. C.
Prince
,
C.
Callegari
,
C.
Miron
,
N.
Saito
,
M.
Yabashi
,
P. V.
Demekhin
,
L. S.
Cederbaum
,
A. I.
Kuleff
,
M.
Yao
, and
K.
Ueda
, “
Interatomic Coulombic decay cascades in multiply excited neon clusters
,”
Nat. Commun.
7
,
13477
(
2016
).
14.
S.
Owada
,
K.
Togawa
,
T.
Inagaki
,
T.
Hara
,
T.
Tanaka
,
Y.
Joti
,
T.
Koyama
,
K.
Nakajima
,
H.
Ohashi
,
Y.
Senba
,
T.
Togashi
,
K.
Tono
,
M.
Yamaga
,
H.
Yumoto
,
M.
Yabashi
,
H.
Tanaka
, and
T.
Ishikawa
, “
A soft X-ray free-electron laser beamline at SACLA: The light source, photon beamline and experimental station
,”
J. Synchrotron Radiat.
25
,
282
288
(
2018
).
15.
B.
Henke
,
E.
Gullikson
, and
J.
Davis
, “
X-ray interactions: Photoabsorption, scattering, transmission, and reflection at E = 50-30,000 eV, Z = 1-92
,”
At. Data Nucl. Data Tables
54
,
181
342
(
1993
).
16.
Y.
Kubota
,
I.
Inoue
,
K.
Togawa
,
R.
Kinjo
,
H.
Iwayama
,
J. R.
Harries
,
Y.
Inubushi
,
S.
Owada
,
K.
Tono
,
T.
Tanaka
,
T.
Hara
, and
M.
Yabashi
, “
Evaluation of pulse duration of the soft x-ray free electron laser at SACLA BL1 with single-shot spectrometry
,” in
2018 16th International Conference on Megagauss Magnetic Field Generation and Related Topics (MEGAGAUSS)
(
IEEE
,
2018
), pp.
1
4
.
17.
H.
Fukuzawa
,
K.
Nagaya
, and
K.
Ueda
, “
Advances in instrumentation for gas-phase spectroscopy and diffraction with short-wavelength free electron lasers
,”
Nucl. Instrum. Methods Phys. Res., Sect. A
907
,
116
131
(
2018
).
18.
O. F.
Hagena
, “
Nucleation and growth of clusters in expanding nozzle flows
,”
Surf. Sci.
106
,
101
116
(
1981
).
19.
D. D.
Hickstein
,
S. T.
Gibson
,
R.
Yurchak
,
D. D.
Das
, and
M.
Ryazanov
, “
A direct comparison of high-speed methods for the numerical Abel transform
,”
Rev. Sci. Instrum.
90
,
065115
(
2019
).
20.
C. J.
Dasch
, “
One-dimensional tomography: A comparison of Abel, onion-peeling, and filtered backprojection methods
,”
Appl. Opt.
31
,
1146
(
1992
).
21.
T.
Gerber
,
Y.
Liu
,
G.
Knopp
,
P.
Hemberger
,
A.
Bodi
,
P.
Radi
, and
Y.
Sych
, “
Charged particle velocity map image reconstruction with one-dimensional projections of spherical functions
,”
Rev. Sci. Instrum.
84
,
033101
(
2013
).
22.
L. O.
Werme
,
T.
Bergmark
, and
K.
Siegbahn
, “
The High resolution L2,3 MM and M4,5 NN Auger spectra from krypton and M4,5 NN and N4,5 OO Auger spectra from xenon
,”
Phys. Scr.
6
,
141
150
(
1972
).
23.
U.
Hergenhahn
,
A.
Kolmakov
,
M.
Riedler
,
A.
de Castro
,
O.
Löfken
, and
T.
Möller
, “
Observation of excitonic satellites in the photoelectron spectra of Ne and Ar clusters
,”
Chem. Phys. Lett.
351
,
235
241
(
2002
).
24.
L. S.
Cederbaum
,
J.
Zobeley
, and
F.
Tarantelli
, “
Giant intermolecular decay and fragmentation of clusters
,”
Phys. Rev. Lett.
79
,
4778
4781
(
1997
).
25.
W.
Lotz
, “
Electron-impact ionization cross-sections for atoms up to Z=108
,”
Z. Phys. A: Hadrons Nucl.
232
,
101
107
(
1970
).
26.
C.
Bostedt
,
H.
Thomas
,
M.
Hoener
,
E.
Eremina
,
T.
Fennel
,
K.-H.
Meiwes-Broer
,
H.
Wabnitz
,
M.
Kuhlmann
,
E.
Plönjes
,
K.
Tiedtke
,
R.
Treusch
,
J.
Feldhaus
,
A. R. B.
de Castro
, and
T.
Möller
, “
Multistep ionization of argon clusters in intense femtosecond extreme ultraviolet pulses
,”
Phys. Rev. Lett.
100
,
133401
(
2008
).
27.
M.
Arbeiter
and
T.
Fennel
, “
Ionization heating in rare-gas clusters under intense XUV laser pulses
,”
Phys. Rev. A
82
,
013201
(
2010
).
28.
C.
Bostedt
,
H.
Thomas
,
M.
Hoener
,
T.
Möller
,
U.
Saalmann
,
I.
Georgescu
,
C.
Gnodtke
, and
J.-M.
Rost
, “
Fast electrons from multi-electron dynamics in xenon clusters induced by inner-shell ionization
,”
New J. Phys.
12
,
083004
(
2010
).
29.
A. I.
Kuleff
,
K.
Gokhberg
,
S.
Kopelke
, and
L. S.
Cederbaum
, “
Ultrafast interatomic electronic decay in multiply excited clusters
,”
Phys. Rev. Lett.
105
,
043004
(
2010
).
30.
K.
Gokhberg
and
L. S.
Cederbaum
, “
Environment assisted electron capture
,”
J. Phys. B: At., Mol. Opt. Phys.
42
,
231001
(
2009
).
31.
T.
Oelze
,
B.
Schütte
,
M.
Müller
,
J. P.
Müller
,
M.
Wieland
,
U.
Frühling
,
M.
Drescher
,
A.
Al-Shemmary
,
T.
Golz
,
N.
Stojanovic
, and
M.
Krikunova
, “
Correlated electronic decay in expanding clusters triggered by intense XUV pulses from a free-electron-laser
,”
Sci. Rep.
7
,
40736
(
2017
).
32.
M.
Arbeiter
and
T.
Fennel
, “
Rare-gas clusters in intense VUV, XUV and soft x-ray pulses: Signatures of the transition from nanoplasma-driven cluster expansion to Coulomb explosion in ion and electron spectra
,”
New J. Phys.
13
,
053022
(
2011
).
You do not currently have access to this content.