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Quantitative Ultrafast Electron-Temperature Dynamics in Photo-Excited Au Nanoparticles.
Sygletou, Maria; Benedetti, Stefania; Ferrera, Marzia; Pierantozzi, Gian Marco; Cucini, Riccardo; Della Valle, Giuseppe; Carrara, Pietro; De Vita, Alessandro; di Bona, Alessandro; Torelli, Piero; Catone, Daniele; Panaccione, Giancarlo; Canepa, Maurizio; Bisio, Francesco.
Affiliation
  • Sygletou M; OptMatLab, Dipartimento di Fisica, Università di Genova, via Dodecaneso 33, I-16146, Genova, Italy.
  • Benedetti S; CNR-Istituto Nanoscienze, via Campi 213/a, 41125, Modena, Italy.
  • Ferrera M; OptMatLab, Dipartimento di Fisica, Università di Genova, via Dodecaneso 33, I-16146, Genova, Italy.
  • Pierantozzi GM; Istituto Officina dei Materiali-CNR, Laboratorio TASC, Area Science Park, S.S. 14, Km 163.5, Trieste, I-34149, Italy.
  • Cucini R; Istituto Officina dei Materiali-CNR, Laboratorio TASC, Area Science Park, S.S. 14, Km 163.5, Trieste, I-34149, Italy.
  • Della Valle G; Dipartimento di Fisica, IFN-CNR, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133, Milano, Italy.
  • Carrara P; Dipartimento di Fisica, Università degli Studi di Milano, via Celoria 16, Milano, Italy.
  • De Vita A; Dipartimento di Fisica, Università degli Studi di Milano, via Celoria 16, Milano, Italy.
  • di Bona A; CNR-Istituto Nanoscienze, via Campi 213/a, 41125, Modena, Italy.
  • Torelli P; Istituto Officina dei Materiali-CNR, Laboratorio TASC, Area Science Park, S.S. 14, Km 163.5, Trieste, I-34149, Italy.
  • Catone D; Istituto di Struttura della Materia - CNR (ISM-CNR), EuroFEL Support Laboratory (EFSL), Via del Fosso del Cavaliere, 100, I-00133, Rome, Italy.
  • Panaccione G; Istituto Officina dei Materiali-CNR, Laboratorio TASC, Area Science Park, S.S. 14, Km 163.5, Trieste, I-34149, Italy.
  • Canepa M; OptMatLab, Dipartimento di Fisica, Università di Genova, via Dodecaneso 33, I-16146, Genova, Italy.
  • Bisio F; CNR-SPIN Istituto Superconduttori Materiali Innovativi e Dispositivi, C.so Perrone 24, I-16152, Genova, Italy.
Small ; 17(26): e2100050, 2021 Jul.
Article in En | MEDLINE | ID: mdl-34061425
ABSTRACT
The femtosecond evolution of the electronic temperature of laser-excited gold nanoparticles is measured, by means of ultrafast time-resolved photoemission spectroscopy induced by extreme-ultraviolet radiation pulses. The temperature of the electron gas is deduced by recording and fitting high-resolution photo emission spectra around the Fermi edge of gold nanoparticles providing a direct, unambiguous picture of the ultrafast electron-gas dynamics. These results will be instrumental to the refinement of existing models of femtosecond processes in laterally-confined and bulk condensed-matter systems, and for understanding more deeply the role of hot electrons in technological applications.
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Full text: 1 Database: MEDLINE Language: En Year: 2021 Type: Article
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Full text: 1 Database: MEDLINE Language: En Year: 2021 Type: Article