Light diffusion and localization in three-dimensional nonlinear disordered media (Articolo in rivista)

Type
Label
  • Light diffusion and localization in three-dimensional nonlinear disordered media (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Conti, C; Angelani, L; Ruocco, G (2007)
    Light diffusion and localization in three-dimensional nonlinear disordered media
    in Physical review. A
    (literal)
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  • Conti, C; Angelani, L; Ruocco, G (literal)
Pagina inizio
  • 033812 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 75 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • C. Conti (1,2), L. Angelani (3), and G. Ruocco (2,4); (1) Centro Studi e Ricerche \"Enrico Fermi,\" Via Panisperna 89/A, I-00184, Roma, Italy (2) Research Center Soft INFM-CNR, c/o Università di Roma \"La Sapienza,\" I-00185, Roma, Italy (3) Research Center SMC INFM-CNR, c/o Università di Roma \"La Sapienza,\" I-00185, Roma, Italy (4) Dipartimento di Fisica, Università di Roma \"La Sapienza,\" I-00185, Roma, Italy Ctr Studi Ric Enrico Fermi, I-00184 Rome, Italy; Univ Roma La Sapienza, CNR, INFM, Res Ctr Soft, I-00185 Rome, Italy; Univ Roma La Sapienza, CNR, INFM, Res Ctr SMC, I-00185 Rome, Italy; Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy (literal)
Titolo
  • Light diffusion and localization in three-dimensional nonlinear disordered media (literal)
Abstract
  • By using a three-dimensional finite-difference time-domain parallel code, the linear and nonlinear propagation of light pulses in a disordered assembly of scatterers, generated by a molecular dynamics code, is simulated. We calculate the static and dynamical light diffusion constant and the transmission in the presence of localized states. We numerically demonstrate the 'modulational instability random laser': at high input peak power, energy is transferred to localized states from the input pulse, resulting in a power-dependent nonexponential time decay of the transmitted pulse. (literal)
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