Vibrationally Resolved Decay Width of Interatomic Coulombic Decay in HeNe

Trinter, Florian; Williams, Joshua; Weller, M.; Waitz, M.; Pitzer, M.; Voigtsberger, J.; Schober, Carl; Kastirke, Gregor; Müller, Christine H.; Goihl, C.; Burzynski, P.; Wiegandt, Florian; Wallauer, R.; Kalinin, Anton; Schmidt, L. Ph. H.; Schöffler, M. S.; Chiang, Ying‐Chih; Gokhberg, Kirill; Jahnke, T.; Dørner, R.

doi:10.1103/physrevlett.111.233004

Cited by 60 publications

(78 citation statements)

References 30 publications

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“…For instance, Auger decay5152 or ICD in dimers5355 were shown to take place on femtosecond time-scales. However, in the case of ICD in dimer a virtual photon model predicts a substantial increase of the ICD lifetime for higher excited states27 in accordance with experimental observation54.…”

Section: Discussionsupporting

confidence: 84%

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Correlated electronic decay in expanding clusters triggered by intense XUV pulses from a Free-Electron-Laser

Oelze

Schütte

Müller

et al. 2017

Sci Rep

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Irradiation of nanoscale clusters and large molecules with intense laser pulses transforms them into highly-excited non- equilibrium states. The dynamics of intense laser-cluster interaction is encoded in electron kinetic energy spectra, which contain signatures of direct photoelectron emission as well as emission of thermalized nanoplasma electrons. In this work we report on a so far not observed spectrally narrow bound state signature in the electron kinetic energy spectra from mixed Xe core - Ar shell clusters ionized by intense extreme-ultraviolet (XUV) pulses from a free-electron-laser. This signature is attributed to the correlated electronic decay (CED) process, in which an excited atom relaxes and the excess energy is used to ionize the same or another excited atom or a nanoplasma electron. By applying the terahertz field streaking principle we demonstrate that CED-electrons are emitted at least a few picoseconds after the ionizing XUV pulse has ended. Following the recent finding of CED in clusters ionized by intense near-infrared laser pulses, our observation of CED in the XUV range suggests that this process is of general relevance for the relaxation dynamics in laser produced nanoplasmas.

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Section: Discussionsupporting

confidence: 84%

“…It is probable that in contrast to most of previous studies of correlated electron dynamics91011125152535455 the precursors for observed CED-channels are populated few picoseconds after the absorption of XUV-photons. On this time-scale the clusters are substantially expanded and resemble a strongly diluted plasma2443.…”

Section: Discussionmentioning

confidence: 59%

Correlated electronic decay in expanding clusters triggered by intense XUV pulses from a Free-Electron-Laser

Oelze

Schütte

Müller

et al. 2017

Sci Rep

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“…A similar approach to that of Öhrwall et al [18] was recently chosen by Trinter and coworkers [23]. In their experimental work they investigated ICD after resonant excitation of a HeNe mixed cluster [24][25][26][27][28][29][30][31]: a resonant excitation of the He atom caused the Ne atom to be ionized after ICD.…”

Section: Early Theoretical and Experimental Workmentioning

confidence: 95%

Time-resolved studies of interatomic Coulombic decay

Frühling

Trinter

Karimi

et al. 2015

Journal of Electron Spectroscopy and Related Phenomena

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a b s t r a c tInteratomic Coulombic decay (ICD) is a decay mechanism occurring in loosely bound matter, e.g. in systems bound by van der Waals-forces or hydrogen bonds. In many such cases the decay time is similar to the time scale of nuclear motion during the decay. As the efficiency of ICD strongly depends on the internuclear distance of the atoms or molecules involved in the decay, an overall non-trivial temporal decay behavior arises. The progress of examining the time-domain aspects of interatomic Coulombic decay is summarized in this short topical review with a special emphasis on experiments that are now feasible due to the developments of free-electron lasers.

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“…This two-center ionization channel can be remarkably effective and strongly dominate over the usual direct single-center PI. It was experimentally observed in helium-neon dimers using synchrotron radiation [23].In this communication we study a dynamic variant of resonant two-center PI occurring in slow atomic collisions (see figure 1). The average distance R between colliding atoms is (many) orders of magnitude larger than in a bound system and the probability for the two-center PI scales as R −6 [22].…”

mentioning

confidence: 91%

mentioning

confidence: 99%

Dynamic two-center resonant photoionization in slow atomic collisions

et al. 2019

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An additional channel for photoionization of an atom A by an electromagnetic field opens if it interacts with an atom B resonantly coupled to this field. In this channel, which is known to be very efficient when A and B constitute a bound system, A is ionized via resonant photoexcitation of B with subsequent energy transfer to A through two-center electron correlations. We show that it can strongly dominate the ionization of A also in collisions with B, even though the average distance between A and B exceeds the typical size of a bound system by orders of magnitude.The breakup of bound microscopic systems by photoabsorption is characterized by well defined energy and momentum transfers, which often enables one to extract precise information about the process and the system itself. Studies of photo-induced breakup reactions-such as atomic photoionization (PI) [1, 2], molecular photodissociation [3], and nuclear photo-disintegration [4]-therefore deepen our understanding of the structure and dynamics of matter on a microscopic scale. Notably, photoionization and photodissociation allow to probe the fundamental role played by electron correlations.Electron correlations are omnipresent in the quantum world, ranging from atoms and small molecules to organic macromolecules and solids. They drive autoionization of atoms and ions and mutual electron transitions in high-energy ion-atom collisions [5,6], can result in de-excitation reactions (e.g. Penning effect) in slow atomic collisions [7] and in ultracold quantum gases [8], govern energy transfer between chromophores [9] and lattice dynamics in polymers [10], and are even responsible for magnetism and superconductivity [11]. Electron correlations between atoms in bound systems with more than one atomic center lead to inter-atomic Coulombic decay (ICD) [12] observed in dimers and clusters [13-16] and water molecules [17]. Inter-atomic electron correlations can greatly enhance recombination processes [18,19] and lead to resonances in electron scattering on two-atomic systems [19].Particularly clean manifestations of electron correlations are revealed in some PI processes, e.g. in singlephoton double ionization [20], non-sequential double ionization in strong laser fields [21] and resonant twocenter PI [22]. In the latter, ionization of a large-size molecule occurs via resonant photoabsorption by one of its atoms with subsequent transfer of excitation energy via two-center electron correlations to another atom leading to its ionization. This two-center ionization channel can be remarkably effective and strongly dominate over the usual direct single-center PI. It was experimentally observed in helium-neon dimers using synchrotron radiation [23].In this communication we study a dynamic variant of resonant two-center PI occurring in slow atomic collisions (see figure 1). The average distance R between colliding atoms is (many) orders of magnitude larger than in a bound system and the probability for the two-center PI scales as R −6 [22]. Therefore, it might seem at first si...

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Vibrationally Resolved Decay Width of Interatomic Coulombic Decay in HeNe

Cited by 60 publications

References 30 publications

Correlated electronic decay in expanding clusters triggered by intense XUV pulses from a Free-Electron-Laser

Correlated electronic decay in expanding clusters triggered by intense XUV pulses from a Free-Electron-Laser

Time-resolved studies of interatomic Coulombic decay

Dynamic two-center resonant photoionization in slow atomic collisions

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