ORCID Profile
0000-0002-8925-495X
Current Organisations
CNRS
,
Deutsches Elektronen-Synchrotron
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Publisher: IOP Publishing
Date: 11-2019
Abstract: Single-photon laser enabled Auger decay (spLEAD) is an electronic de-excitation process which was recently predicted and observed in Ne. We have investigated it using bichromatic phase-locked free electron laser radiation and extensive angle-resolved photoelectron measurements, supported by a detailed theoretical model. We first used separately the fundamental wavelength resonant with the Ne + 2 s –2 p transition, 46.17 nm, and its second harmonic, 23.08 nm, then their phase-locked bichromatic combination. In the latter case the phase difference between the two wavelengths was scanned, and interference effects were observed, confirming that the spLEAD process was occurring. The detailed theoretical model we developed qualitatively predicts all observations: branching ratios between the final Auger states, their litudes of oscillation as a function of phase, the phase lag between the oscillations of different final states, and partial cancellation of the oscillations under certain conditions.
Publisher: Springer Science and Business Media LLC
Date: 10-08-2020
Publisher: Wiley
Date: 14-02-2020
DOI: 10.1002/MRM.28195
Publisher: Oxford University Press (OUP)
Date: 18-11-2015
Abstract: The development of a safe and reproducible in vivo imaging technique to track the fate of transplanted human embryonic stem cell-derived cardiac progenitor cells (hESC-CPCs) is a necessary step to clinical translation. An iron oxide nanoparticle (ferumoxytol)-based approach was used for cell labeling and subsequent in vivo magnetic resonance imaging monitoring of hESC-CPCs transplanted into uninjured pig hearts. The present results demonstrate the use of ferumoxytol labeling and imaging techniques in tracking the location and dispersion of cell grafts, highlighting its utility in future cardiac stem cell therapy trials.
Publisher: JACoW Publishing, Geneva, Switzerland
Date: 2019
Publisher: American Physical Society (APS)
Date: 22-11-0025
Publisher: Wiley
Date: 28-05-2020
DOI: 10.1002/MRM.28284
Publisher: Springer Science and Business Media LLC
Date: 14-02-2020
DOI: 10.1038/S41467-020-14721-2
Abstract: The recent development of ultrafast extreme ultraviolet (XUV) coherent light sources bears great potential for a better understanding of the structure and dynamics of matter. Promising routes are advanced coherent control and nonlinear spectroscopy schemes in the XUV energy range, yielding unprecedented spatial and temporal resolution. However, their implementation has been h ered by the experimental challenge of generating XUV pulse sequences with precisely controlled timing and phase properties. In particular, direct control and manipulation of the phase of in idual pulses within an XUV pulse sequence opens exciting possibilities for coherent control and multidimensional spectroscopy, but has not been accomplished. Here, we overcome these constraints in a highly time-stabilized and phase-modulated XUV-pump, XUV-probe experiment, which directly probes the evolution and dephasing of an inner subshell electronic coherence. This approach, avoiding any XUV optics for direct pulse manipulation, opens up extensive applications of advanced nonlinear optics and spectroscopy at XUV wavelengths.
Publisher: Elsevier BV
Date: 05-2022
Publisher: Springer Science and Business Media LLC
Date: 26-02-2019
Location: United States of America
Location: Iran (Islamic Republic of)
Location: Switzerland
No related grants have been discovered for Stanislas Rapacchi.