Towards simultaneous measurements of electronic and structural properties in ultra-fast x-ray free electron laser absorption spectroscopy experiments

Autor: P. M. Leguay, Motoaki Nakatsutsumi, B. I. Cho, Marion Harmand, C. Ozkan, Michael Störmer, K. Engelhorn, Hae Ja Lee, C. Fourment, Jérôme Gaudin, Bob Nagler, Sven Toleikis, Eric Galtier, Fabien Dorchies, Th. Tschentscher, Philip Heimann
Přispěvatelé: Airbus Group Innovations [Suresnes], Airbus [France], Centre d'Etudes Lasers Intenses et Applications (CELIA), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), SLAC National Accelerator Laboratory (SLAC), Stanford University, Deutsches Elektronen-Synchrotron [Zeuthen] (DESY), Helmholtz-Gemeinschaft = Helmholtz Association, Énergie Matériaux Télécommunications - INRS (EMT-INRS), Institut National de la Recherche Scientifique [Québec] (INRS)-Université du Québec à Montréal = University of Québec in Montréal (UQAM), European XFEL GmbH (XFEL), European XFEL GmbH, Deutsches Elektronen-Synchrotron [Hamburg] (DESY), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Scientific Reports
Scientific Reports, Nature Publishing Group, 2014, 4
HAL
Gaudin, J.; Fourment, C.; Cho, B.I.; Engelhorn, K.; Galtier, E.; Harmand, M.; Leguay, P.M; Lee, H.J.; Nagler, B.; Nakatsutsumi, M.; Ozkan, C.; Stoermer, M.; Toleikis, S.; Tschentscher, T.; Heimann, P.A.; Dorchies, F.: Towards simultaneous measurements of electronic and structural properties in ultra-fast x-ray free electron laser absorption spectroscopy experiments. In: Scientific Reports. Vol. 4 (2014) 4724. (DOI: 10.1038/srep04724)
Scientific Reports, 2014, 4, ⟨10.1038/srep04724⟩
Scientific reports 4, 4724 (20142014). doi:10.1038/srep04724
ISSN: 2045-2322
DOI: 10.1038/srep04724)
Popis: International audience; The rapidly growing ultrafast science with X-ray lasers unveils atomic scale processes with unprecedented time resolution bringing the so called "molecular movie'' within reach. X-ray absorption spectroscopy is one of the most powerful x-ray techniques providing both local atomic order and electronic structure when coupled with ad-hoc theory. Collecting absorption spectra within few x-ray pulses is possible only in a dispersive setup. We demonstrate ultrafast time-resolved measurements of the LIII-edge x-ray absorption near-edge spectra of irreversibly laser excited Molybdenum using an average of only few x-ray pulses with a signal to noise ratio limited only by the saturation level of the detector. The simplicity of the experimental set-up makes this technique versatile and applicable for a wide range of pump-probe experiments, particularly in the case of non-reversible processes.
Databáze: OpenAIRE