Modeling picosecond electron dynamics of pump-probe intersubband spectroscopy in n-type Ge/SiGe quantum wells (Articolo in rivista)

Type

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

Label

• Modeling picosecond electron dynamics of pump-probe intersubband spectroscopy in n-type Ge/SiGe quantum wells (Articolo in rivista) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

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

• 10.1103/PhysRevB.86.205317 (literal)

Alternative label

• M. Virgilio, G. Grosso, G. Pizzi, M. De Seta, G. Capellini, and M. Ortolani (2012)
  Modeling picosecond electron dynamics of pump-probe intersubband spectroscopy in n-type Ge/SiGe quantum wells
  in Physical review. B, Condensed matter and materials physics; The American Physical Society, Ridge, NY (Stati Uniti d'America)
  (literal)

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

• M. Virgilio, G. Grosso, G. Pizzi, M. De Seta, G. Capellini, and M. Ortolani (literal)

Pagina inizio

• 205317 (literal)

Pagina fine

• 205327 (literal)

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

• http://link.aps.org/doi/10.1103/PhysRevB.86.205317 (literal)

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

• 86 (literal)

Rivista

• Physical review. B, Condensed matter and materials physics (Rivista)

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

• 11 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopus (literal)

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

• Dipartimento di Fisica \"E. Fermi\", Università di Pisa, Largo Pontecorvo 3, I-56127 Pisa, Italy NEST, Istituto Nanoscienze-CNR, Piazza San Silvestro 12, I-56127 Pisa, Italy Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56126 Pisa, Italy Theory and Simulation of Materials, École Polytechnique Fédérale de Lausanne, Station 12, CH-1015 Lausanne, Switzerland Dipartimento di Fisica \"E. Amaldi\", Università di Roma Tre, Via Vasca Navale 84, I-00146 Roma, Italy Dipartimento di Fisica Sapienza, Università di Roma, Piazzale Aldo Moro 2, I-00185 Roma, Italy (literal)

Titolo

• Modeling picosecond electron dynamics of pump-probe intersubband spectroscopy in n-type Ge/SiGe quantum wells (literal)

Abstract

• We present an energy-balance model of the electronic intersubband relaxation in optically excited n-type Ge/SiGe quantum wells with absorption resonance in the THz range. To this aim, the energy relaxation rates of the electron system due to interactions with both nonpolar optical and acoustic phonons are calculated. The time dependence of the relative differential transmission is also evaluated and compared with experimental data from recent pump-probe measurements. The energy relaxation rates due to acoustic and optical phonon are investigated for different electron temperatures, set by the pump beam intensity. We find that the relaxation dynamics strongly depends on the intersubband energy spacing when this is close to the optical phonon energy. Finally, our results evidence that in this material system the time dependence of the depolarization shift may have a strong influence on the relative differential transmission signal. (literal)

Editore

• The American Physical Society (Editore)

Prodotto di

• Nanofotonica (MD.P06.020.002) (Modulo)

Autore CNR

• GIUSEPPE GROSSO (Persona)
• MICHELE VIRGILIO (Persona)

Incoming links:

Autore CNR di

• GIUSEPPE GROSSO (Persona)
• MICHELE VIRGILIO (Persona)

Prodotto

• Nanofotonica (MD.P06.020.002) (Modulo)

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

• Physical review. B, Condensed matter and materials physics (Rivista)

Editore di

• The American Physical Society (Editore)