Effect of electric fields on the decay branching ratio of Pe1 doubly excited states in helium measured by time-resolved fluorescence (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Effect of electric fields on the decay branching ratio of Pe1 doubly excited states in helium measured by time-resolved fluorescence (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1103/PhysRevA.74.051404 (literal)

Alternative label

• M. Zitnik, F. Penent, P. Lablanquie, A. Mihelic, K. Bucar, R. Richter, M. Alagia, S. Stranges (2006)
  Effect of electric fields on the decay branching ratio of Pe1 doubly excited states in helium measured by time-resolved fluorescence
  in Physical review. A
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• M. Zitnik, F. Penent, P. Lablanquie, A. Mihelic, K. Bucar, R. Richter, M. Alagia, S. Stranges (literal)

Pagina inizio

• 051404 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 74 (literal)

Rivista

• Physical review. A (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 5 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1Jo?ef Stefan Institute, P. O. Box 3000, SI-1001 Ljubljana, Slovenia 2LCP-MR, Université Pierre et Marie Curie 6 and CNRS (UMR 7614), 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France 3Sincrotrone Trieste, I-340 12 Trieste, Italy 4INFM-TASC, Padriciano 99, I-340 12 Trieste, Italy 5Dipartimento di Chimica, Università di Roma \"La Sapienza\" and INFM Unit, 00185 Rome, Italy (literal)

Titolo

• Effect of electric fields on the decay branching ratio of Pe1 doubly excited states in helium measured by time-resolved fluorescence (literal)

Abstract

• We have measured the lifetimes of P-1(e) (n=9-12) doubly excited states in static electric fields (1-6 kV/cm) by observing the decay of the fluorescence signal as a function of time. The effects of the field on these helium states below the second ionization threshold are twofold: their excitation becomes possible due to the Stark mixing with the optically allowed P-1(o) series, and their lifetime is strongly modified by the opening of the autoionization channel, not accessible in zero field. Although the electric field represents only a tiny perturbation of the atomic potential, a substantial shortening of the lifetimes below 100 ps is observed. This is the simplest quantum system where the ratio of autoionization to fluorescence decay probability can be effectively controlled by an electric field of moderate strength. (literal)

Prodotto di

• Aspetti chimico fisici dei processi fondamentali (PM.P05.005.001) (Modulo)
• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)
• MD.P06.016.001 Proprieta' elettroniche e strutturali di sistemi a bassa dimensionalita' (MD.P06.016.003) (Modulo)

Autore CNR

• MICHELE ALAGIA (Persona)

Insieme di parole chiave

• Keywords of "Effect of electric fields on the decay branching ratio of Pe1 doubly excited states in helium measured by time-resolved fluorescence" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)
• Aspetti chimico fisici dei processi fondamentali (PM.P05.005.001) (Modulo)
• MD.P06.016.001 Proprieta' elettroniche e strutturali di sistemi a bassa dimensionalita' (MD.P06.016.003) (Modulo)

Autore CNR di

• MICHELE ALAGIA (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Physical review. A (Rivista)

Insieme di parole chiave di

• Keywords of "Effect of electric fields on the decay branching ratio of Pe1 doubly excited states in helium measured by time-resolved fluorescence" (Insieme di parole chiave)