1. Ultrafast relaxation of photoexcited superfluid He nanodropletsM. Mudrich, A.C. LaForge, A. Ciavardini, P. O'Keeffe, C. Callegari, M. Coreno, A. Demidovich, M. Devetta, M. Di Fraia, M. Drabbels, P. Finetti, O. Gessner, C. Grazioli, A. Hernando, D.M. Neumark, Y. Ovcharenko, P. Piseri, O. Plekan, K.C. Prince, R. Richter, M.P. Ziemkiewicz, T. Moller, J. Eloranta, M. Pi, M. Barranco, F. Stienkemeier, 2020, original scientific article Keywords: helium, helium nanodroplet, nanomaterial, density functional theory, dipole, excitation, ionization, photoelectron spectroscopy, photoexcitation, photon, simulation, ultraviolet radiation, ultrafast photoemission, free electron laser, ultrafast spectrscopy
Published in RUNG: 20.01.2022; Views: 3168; Downloads: 0
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2. Ultra-Fast-VUV Photoemission Study of UV Excited 2-NitrophenolA. Ciavardini, Marcello Coreno, Carlo Callegari, C. Spezzani, Giovanni De Ninno, Barbara Ressel, Cesare Grazioli, Monica de Simone, Antti Kivimak̈i, Paolo Miotti, Fabio Frassetto, Luca Poletto, Petra Rudolf, Simona Fornarini, Marco Pezzella, Enrico Bodo, Susanna Piccirillo, 2019, original scientific article Abstract: The initial deactivation pathways of gaseous 2-nitrophenol excited at 268 nm were investigated by time-resolved photoelectron spectroscopy (TRPES) with femtosecond-VUV light, produced by a monochromatized high harmonic generation source. TRPES allowed us to obtain new, valuable experimental information about the ultrafast excited-state dynamics of 2-nitrophenol in the gas phase. In accord with recent ab initio on-the-fly nonadiabatic molecular dynamic simulations, our results validate the occurrence of an ultrafast intersystem crossing leading to an intermediate state that decays on a subpicosecond time scale with a branched mechanisms. Two decay pathways are experimentally observed. One probably involves proton transfer, leading to the most stable triplet aci-form of 2-nitrophenol; the second pathway may involve OH rotation. We propose that following intersystem crossing, an ultrafast fragmentation channel leading to OH or HONO loss could also be operative.
Keywords: Ultrafast photoemission, nitrophenol
Published in RUNG: 12.02.2019; Views: 5028; Downloads: 0
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3. Conclusively Addressing the CoPc Electronic Structure: A Joint Gas- Phase and Solid-State Photoemission and Absorption Spectroscopy StudyTeng Zhang, I.E. Brumboiu, Valeria Lanzillotto, J. Lüder, C. Grazioli, Erika Giangrisostomi, R. Ovsyannikov, Y. Sassatelli, Ieva Bidermane, Monica de Simone, Marcello Coreno, Barbara Ressel, Matija Stupar, Maddalena Pedio, Petra Rudolf, Barbara Brena, Carla Puglia, 2017, original scientific article Keywords: Cobalt Phtalocyanine, photoemission spectroscopy, gas phase, solid state
Published in RUNG: 07.02.2018; Views: 5816; Downloads: 0
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5. Control of the Polarization of a Vacuum-Ultraviolet, High-Gain, Free-Electron LaserEnrico Allaria, Giovanni De Ninno, Primož Rebernik Ribič, David Gauthier, C. Grazioli, Barbara Ressel, 2014, original scientific article Keywords: laser na proste elektrone, relativistični elektroni, polarizacija
Published in RUNG: 29.02.2016; Views: 6350; Downloads: 447
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