Search Results - "Plekan, O."
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1
Probing ultrafast ππ/nπ internal conversion in organic chromophores via K-edge resonant absorption
Published in Nature communications (22-06-2017)“…Many photoinduced processes including photosynthesis and human vision happen in organic molecules and involve coupled femtosecond dynamics of nuclei and…”
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2
Acetylacetone photodynamics at a seeded free-electron laser
Published in Nature communications (04-01-2018)“…The first steps in photochemical processes, such as photosynthesis or animal vision, involve changes in electronic and geometric structure on extremely short…”
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3
Coherent control with a short-wavelength free-electron laser
Published in Nature photonics (01-03-2016)“…Researchers demonstrate correlation of two colours (63.0 and 31.5 nm wavelengths) in a free-electron laser and control photoelectron angular distribution by…”
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4
Ultrafast relaxation of photoexcited superfluid He nanodroplets
Published in Nature communications (08-01-2020)“…The relaxation of photoexcited nanosystems is a fundamental process of light–matter interaction. Depending on the couplings of the internal degrees of freedom,…”
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5
Autoionization dynamics of helium nanodroplets resonantly excited by intense XUV laser pulses
Published in New journal of physics (01-08-2020)“…The ionization dynamics of helium droplets irradiated by intense, femtosecond extreme ultraviolet (XUV) pulses is investigated in detail by photoelectron…”
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6
Novel collective autoionization process observed in electron spectra of He clusters
Published in Physical review letters (20-02-2014)“…The ionization dynamics of He nanodroplets irradiated with intense femtosecond extreme ultraviolet pulses of up to 1013 W/cm2 power density have been…”
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7
Observation and Control of Laser-Enabled Auger Decay
Published in Physical review letters (14-08-2017)“…Single-photon laser-enabled Auger decay (spLEAD) is predicted theoretically [B. Cooper and V. Averbukh, Phys. Rev. Lett. 111, 083004…”
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8
Diffraction imaging of light induced dynamics in xenon-doped helium nanodroplets
Published in New journal of physics (01-11-2022)“…Abstract We explore the light induced dynamics in superfluid helium nanodroplets with wide-angle scattering in a pump–probe measurement scheme. The droplets…”
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9
Complete reconstruction of bound and unbound electronic wavefunctions in two-photon double ionization
Published in Nature physics (01-02-2019)“…To be complete, the characterization of the photoionization process of atoms and molecules requires the extraction of all quantum-mechanical phases and…”
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10
Enhancement of Above Threshold Ionization in Resonantly Excited Helium Nanodroplets
Published in Physical review letters (27-08-2021)“…Clusters and nanodroplets hold the promise of enhancing high-order nonlinear optical effects due to their high local density. However, only moderate…”
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11
Circular Dichroism in Multiphoton Ionization of Resonantly Excited He^{+} Ions
Published in Physical review letters (06-01-2017)“…Intense, circularly polarized extreme-ultraviolet and near-infrared (NIR) laser pulses are combined to double ionize atomic helium via the oriented…”
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12
Symmetry breakdown of electron emission in extreme ultraviolet photoionization of argon
Published in Nature communications (07-11-2018)“…Short wavelength free-electron lasers (FELs), providing pulses of ultrahigh photon intensity, have revolutionized spectroscopy on ionic targets. Their…”
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13
Real-Time Dynamics of the Formation of Hydrated Electrons upon Irradiation of Water Clusters with Extreme Ultraviolet Light
Published in Physical review letters (05-04-2019)“…Free electrons in a polar liquid can form a bound state via interaction with the molecular environment. This so-called hydrated electron state in water is of…”
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14
Time-Resolved Measurement of Interatomic Coulombic Decay Induced by Two-Photon Double Excitation of Ne2
Published in Physical review letters (19-01-2017)“…Not provided…”
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15
Controlling Fragmentation of the Acetylene Cation in the Vacuum Ultraviolet via Transient Molecular Alignment
Published in The journal of physical chemistry letters (12-01-2023)“…An open-loop control scheme of molecular fragmentation based on transient molecular alignment combined with single-photon ionization induced by a…”
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16
Control of H2 Dissociative Ionization in the Nonlinear Regime Using Vacuum Ultraviolet Free-Electron Laser Pulses
Published in Physical review letters (07-09-2018)“…The role of the nuclear degrees of freedom in nonlinear two-photon single ionization of H2 molecules interacting with short and intense vacuum ultraviolet…”
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17
Time-Resolved Chiral X-Ray Photoelectron Spectroscopy with Transiently Enhanced Atomic Site Selectivity: A Free-Electron Laser Investigation of Electronically Excited Fenchone Enantiomers
Published in Physical review. X (01-01-2023)“…Chirality is widespread in nature, playing a fundamental role in biochemical processes and in the origin of life itself. The observation of dynamics in chiral…”
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18
Ultrafast Resonant Interatomic Coulombic Decay Induced by Quantum Fluid Dynamics
Published in Physical review. X (12-04-2021)“…Interatomic processes play a crucial role in weakly bound complexes exposed to ionizing radiation; therefore, gaining a thorough understanding of their…”
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19
Determining the polarization state of an extreme ultraviolet free-electron laser beam using atomic circular dichroism
Published in Nature communications (16-04-2014)“…Ultrafast extreme ultraviolet and X-ray free-electron lasers are set to revolutionize many domains such as bio-photonics and materials science, in a manner…”
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20
A theoretical and experimental study of the near edge X-ray absorption fine structure (NEXAFS) and X-ray photoelectron spectra (XPS) of nucleobases: Thymine and adenine
Published in Chemical physics (23-05-2008)“…The core level electron excitation and ionization spectra of thymine and adenine have been investigated by photoabsorption and photoemission spectroscopy, and…”
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