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3. Tunable orbital angular momentum in high-harmonic generationDavid Gauthier, Primoz Rebernik-Ribic, Ganesh Adhikari, A Camper, C Chappuis, LF Dimauro, G Dovillaire, Fabio Frassetto, R Geneaux, Paolo Miotti, Luca Poletto, Barbara Ressel, C. Spezzani, Matija Stupar, T Ruchon, Giovanni De Ninno, 2017, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: Angular orbital momentum, High harmonic generation
Objavljeno: 05.02.2018; Ogledov: 1539; Prenosov: 668
 Polno besedilo (843,67 KB) |
4. Ultra-Fast-VUV Photoemission Study of UV Excited 2-NitrophenolPetra Rudolf, Luca Poletto, Fabio Frassetto, Paolo Miotti, Antti Kivimak̈i, Monica de Simone, Cesare Grazioli, Barbara Ressel, Giovanni De Ninno, C. Spezzani, Carlo Callegari, Marcello Coreno, A. Ciavardini, Simona Fornarini, Marco Pezzella, Enrico Bodo, Susanna Piccirillo, 2019, izvirni znanstveni članek Opis: 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.
Najdeno v: osebi
Ključne besede: Ultrafast photoemission, nitrophenol
Objavljeno: 12.02.2019; Ogledov: 1024; Prenosov: 0
Polno besedilo (1,81 MB) |
5. Element selective probe of the ultra-fast magnetic response to an element selective excitation in Fe-Ni compounds using a two-color FEL sourceEugenio Ferrari, C. Spezzani, Franck Fortuna, Renaud Delaunay, Franck Vidal, Ivaylo Nikolov, Paolo Cinquegrana, B. Diviacco, David Gauthier, G. Penco, Primož Rebernik Ribič, Giovanni De Ninno, 2017, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: free electron laser, two-color source, ultra-fast dynamics
Objavljeno: 13.01.2020; Ogledov: 602; Prenosov: 3
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