Non-locality and collective emission in disordered lasing resonators (Articolo in rivista)

Type
Label
  • Non-locality and collective emission in disordered lasing resonators (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1038/lsa.2013.44 (literal)
Alternative label
  • Marco Leonetti (1,2); Claudio Conti (1,3); Cefe Lopez (2) (2013)
    Non-locality and collective emission in disordered lasing resonators
    in Light: Science & Applications
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Marco Leonetti (1,2); Claudio Conti (1,3); Cefe Lopez (2) (literal)
Pagina inizio
  • e88 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.nature.com/lsa/journal/v2/n8/full/lsa201344a.html (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 2 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • August (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) ISC-CNR, UOS Sapienza, 00185 Roma, Italy (2) Institute for Material Science Madrid (ICMM-CSIC), 28049 Madrid, Spain (3) Department of Physics, University Sapienza, I-00185 Roma, Italy (literal)
Titolo
  • Non-locality and collective emission in disordered lasing resonators (literal)
Abstract
  • Random lasing is observed in optically active resonators in the presence of disorder. As the optical cavities involved are open, the modes are coupled, and energy may pour from one state to another provided that they are spatially overlapping. Although the electromagnetic modes are spatially localized, our system may be actively switched to a collective state, presenting a novel form of non-locality revealed by a high degree of spectral correlation between the light emissions collected at distant positions. In a nutshell, light may be stored in a disordered nonlinear structure in different fashions that strongly differ in their spatial properties. This effect is experimentally demonstrated and theoretically explained in titania clusters embedded in a dye, and it provides clear evidence of a transition to a multimodal collective emission involving the entire spatial extent of the disordered system. Our results can be used to develop a novel type of miniaturized, actively controlled all-optical chip. (literal)
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