1. Photoelectric effect with a twistAlberto Simoncig, Benedikt Rösner, Barbara Ressel, Oksana Plekan, Najmeh Mirian, Andrej Mihelič, Micheal Meyer, Michele Manfredda, Špela Krušič, Klaus Hansen, Luca Giannessi, Michele Di Fraia, Alexander Demidovich, Christian David, Miltcho B. Danailov, Marcello Coreno, Enrico Allaria, Primož Rebernik Ribič, Jonas Wätzel, Giovanni De Ninno, Simone Spampinati, Janez Štupar, Matjaž Žitnik, Marco Zangrando, Carlo Callegari, Jamal Berakdar, 2020, izvirni znanstveni članek Opis: Photons have fixed spin and unbounded orbital angular momentum (OAM). While the former is manifested in the polarization of light, the latter corresponds to the spatial phase distribution of its wavefront1. The distinctive way in which the photon spin dictates the electron motion upon light– matter interaction is the basis for numerous well-established spectroscopies. By contrast, imprinting OAM on a mat- ter wave, specifically on a propagating electron, is gener- ally considered very challenging and the anticipated effect undetectable2. In refs. 3,4, the authors provided evidence of OAM-dependent absorption of light by a bound electron. Here, we seek to observe an OAM-dependent dichroic photo- electric effect, using a sample of He atoms. Surprisingly, we find that the OAM of an optical field can be imprinted coher- ently onto a propagating electron wave. Our results reveal new aspects of light–matter interaction and point to a new kind of single-photon electron spectroscopy.
Najdeno v: osebi
Ključne besede: FEL, OAM, Photoelectric effect
Objavljeno: 09.09.2020; Ogledov: 2210; Prenosov: 0
 Polno besedilo (2,45 MB) |
2. Generation and measurement of intense few-femtosecond superradiant extreme-ultraviolet free-electron laser pulsesAlexander Demidovich, Enrico Allaria, Laura Badano, Miltcho Bojanov Danailov, Najmeh S. Mirian, Michele Di Fraia, Simone Spampinati, Filippo Sottocorona, Giovanni De Ninno, Primož Rebernik Ribič, 2021, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: free electron laser, superradiance, femtosecond
Objavljeno: 03.01.2022; Ogledov: 911; Prenosov: 0
Polno besedilo (2,34 MB) |
3. Carbon and Nitrogen K-Edge NEXAFS Spectra of Indole, 2,3-Dihydro-7-azaindole, and 3-FormylindoleAurora Ponzi, Elisa Bernes, Daniele Toffoli, Giovanna Fronzoni, Carlo Callegari, Alessandra Ciavardini, Michele Di Fraia, Robert Richter, Kevin Charles Prince, Hanan Sa'adeh, Michele Devetta, Davide Faccialà, Caterina Vozzi, Lorenzo Avaldi, Paola Bolognesi, Mattea Castrovilli, Daniele Catone, Marcello Coreno, Oksana Plekan, 2021, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: Carbon and nitrogen, General description, Hybrid functional, Near-edge X-ray absorption fine structure spectrum, Relevant features, Rydberg character, Theoretical spectra, Time dependent density functional theory
Objavljeno: 19.01.2022; Ogledov: 1036; Prenosov: 0
Polno besedilo (4,29 MB) |
4. Light-Induced Magnetization at the NanoscaleGiovanni De Ninno, Jamal Berakdar, Carlo Callegari, Marco Zangrando, Matjaž Žitnik, Matija Stupar, Simone Spampinati, Alberto Simoncig, Benedikt Rösner, Barbara Ressel, Oksana Plekan, Najmeh Mirian, Andrej Mihelič, Michael Meyer, Michele Manfredda, Špela Krušič, Klavs Hansen, Luca Giannessi, Christian David, Alexander Demidovich, Michele Di Fraia, Miltcho Danailov, Marcello Coreno, Primož Rebernik Ribič, Jonas Wätzel, 2022, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: FEL, orbital angular momentum, magnetisation
Objavljeno: 16.01.2023; Ogledov: 245; Prenosov: 0
Polno besedilo (1,39 MB) |
5. Ultrafast relaxation of photoexcited superfluid He nanodropletsD.M. Neumark, A. Hernando, O. Gessner, C. Grazioli, P. Finetti, M. Drabbels, M. Di Fraia, M. Devetta, A. Demidovich, M. Coreno, C. Callegari, A. Ciavardini, P. O'Keeffe, M. Mudrich, A.C. LaForge, 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, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: helium, helium nanodroplet, nanomaterial, density functional theory, dipole, excitation, ionization, photoelectron spectroscopy, photoexcitation, photon, simulation, ultraviolet radiation, ultrafast photoemission, free electron laser, ultrafast spectrscopy
Objavljeno: 20.01.2022; Ogledov: 1004; Prenosov: 0
Polno besedilo (2,39 MB) |
6. Experimental and Theoretical Photoemission Study of Indole and Its Derivatives in the Gas PhaseO. Plekan, H. Sa'adeh, A. Ciavardini, C. Callegari, G. Cautero, C. Dri, M. Di Fraia, K.C. Prince, R. Richter, R. Sergo, L. Stebel, M. Devetta, D. Faccialà, C. Vozzi, L. Avaldi, P. Bolognesi, M.C Castrovilli, D. Catone, M. Coreno, F. Zuccaro, E. Bernes, G. Fronzoni, D. Toffoli, 2020, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: Binding energy, Calculations, Core levels, Electronic structure, Ionization of gases, Ionization potential, Molecular orbitals, Photoelectron spectroscopy, Photoelectrons, Photoemission, Photoionization, Photons, Polycyclic aromatic hydrocarbons, X rays
Objavljeno: 21.01.2022; Ogledov: 1040; Prenosov: 0
Polno besedilo (2,23 MB) |
