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19992022
most citedHelium nanodroplet isolation ro-vibrational spectroscopy: methods and recent results

352 citations · 1.5k across the 29 of their papers we have counts for

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physics.atm-clus2022

Extreme ultraviolet wave packet interferometry of the autoionizing HeNe dimer

Daniel Uhl, Andreas Wituschek, Rupert Michiels +24

Femtosecond extreme ultraviolet wave packet interferometry (XUV-WPI) was applied to study resonant inter-atomic Coulombic decay (ICD) in the HeNe dimer. The high demands on phase s…

physics.atm-clus2022★ 13 cited

Time-resolved Ultrafast Interatomic Coulombic Decay in Superexcited Sodium-doped Helium Nanodroplets

Jakob D. Asmussen, Rupert Michiels, Ulrich Bangert +16

The autoionization dynamics of superexcited superfluid He nanodroplets doped with Na atoms is studied by extreme-ultraviolet (XUV) time-resolved electron spectroscopy. Following ex…

physics.atm-clus2021★ 11 cited

Collective enhancement of above threshold ionization by resonantly excited helium nanodroplets

R. Michiels, M. Abu-samha, L. B. Madsen +18

Clusters and nanodroplets hold the promise of enhancing high-order nonlinear optical effects due to their high local density. However, only moderate enhancement has been demonstrat…

physics.atm-clus2021★ 17 cited

Unravelling the Full Relaxation Dynamics of Superexcited Helium Nanodroplets

Jakob D. Asmussen, Rupert Michiels, Katrin Dulitz +20

The relaxation dynamics of superexcited superfluid He nanodroplets is thoroughly investigated by means of extreme-ultraviolet (XUV) femtosecond electron and ion spectroscopy comple…

physics.atm-clus2020★ 8 cited

Time-resolved formation of excited atomic and molecular states in XUV-induced nanoplasmas in ammonia clusters

Rupert Michiels, Aaron Cristopher LaForge, Matthias Bohlen +15

High intensity XUV radiation from a free-electron (FEL) was used to create a nanoplasma inside ammonia clusters with the intent of studying the resulting electron-ion interactions…

physics.atm-clus2019

Autoionization dynamics of He nanodroplets resonantly excited by intense XUV laser pulses

Y. Ovcharenko, A. LaForge, B. Langbehn +16

The ionization dynamics of helium droplets in a wide size range from 220 to 10^6 He atoms irradiated with intense femtosecond extreme ultraviolet (XUV) pulses of 10^9 ÷ 10^{12} W/c…

physics.atm-clus2018★ 64 cited

Three-Dimensional Shapes of Spinning Helium Nanodroplets

Bruno Langbehn, Katharina Sander, Yevheniy Ovcharenko +23

A significant fraction of superfluid helium nanodroplets produced in a free-jet expansion have been observed to gain high angular momentum resulting in large centrifugal deformatio…

physics.atm-clus2013★ 55 cited

EUV ionization of pure He nanodroplets: Mass-correlated photoelectron imaging, Penning ionization and electron energy-loss spectra

D. Buchta, S. R. Krishnan, N. B. Brauer +11

The ionization dynamics of pure He nanodroplets irradiated by EUV radiation is studied using Velocity-Map Imaging PhotoElectron-PhotoIon COincidence (VMI-PEPICO) spectroscopy. We p…

physics.atm-clus2013★ 64 cited

Penning ionization of doped helium nanodroplets following EUV excitation

D. Buchta, S. R. Krishnan, N. B. Brauer +11

Helium nanodroplets are widely used as a cold, weakly interacting matrix for spectroscopy of embedded species. In this work we excite or ionize doped He droplets using synchrotron…

physics.atm-clus2011★ 49 cited

Imaging spectroscopy of rubidium atoms attached to helium nanodroplets

L. Fechner, B. Gruener, A. Sieg +4

Highly excited states of rubidium (Rb) atoms attached to helium (He) nanodroplets are studied by two-photon ionization spectroscopy in combination with electron and ion imaging. Ph…