Narrow intersubband transitions in n-type Ge/SiGe multi-quantum wells: control of the terahertz absorption energy trough the temperature dependent depolarization shif (Articolo in rivista)

Type
Label
  • Narrow intersubband transitions in n-type Ge/SiGe multi-quantum wells: control of the terahertz absorption energy trough the temperature dependent depolarization shif (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0957-4484/23/46/465708 (literal)
Alternative label
  • M. De Seta (1), G. Capellini(1), M. Ortolani(2,3), M. Virgilio(4,5), G. Grosso (4,5), G. Nicotra(6) and P. Zaumseil (7) (2012)
    Narrow intersubband transitions in n-type Ge/SiGe multi-quantum wells: control of the terahertz absorption energy trough the temperature dependent depolarization shif
    in Nanotechnology (Bristol. Print); IOP Publishing Ltd., Bristol BS1 6BE (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • M. De Seta (1), G. Capellini(1), M. Ortolani(2,3), M. Virgilio(4,5), G. Grosso (4,5), G. Nicotra(6) and P. Zaumseil (7) (literal)
Pagina inizio
  • 465708 (literal)
Pagina fine
  • 465715 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 23 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Note
  • Scopus (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 Dipartimento di Fisica 'E Amaldi', Università di Roma Tre, via Vasca Navale 84, I-00146 Roma, Italy 2 CNR-Istituto di Fotonica e Nanotecnologie, via Cineto Romano 42, I-00156 Roma, Italy 3 Dipartimento di Fisica, Università di Roma La Sapienza, Piazzale Aldo Moro 2, I-00185 Roma, Italy 4 Dipartimento di Fisica 'E Fermi', Università di Pisa, largo Pontecorvo 3, I-56127 Pisa, Italy 5 NEST, CNR-Istituto Nanoscienze, Piazza San Silvestro 12, I-56127 Pisa, Italy 6 CNR-IMM Stradale Primosole 50, I-95121 Catania, Italy 7 IHP, Im Technologiepark 25, D-15236 Frankfurt (Oder), Germany (literal)
Titolo
  • Narrow intersubband transitions in n-type Ge/SiGe multi-quantum wells: control of the terahertz absorption energy trough the temperature dependent depolarization shif (literal)
Abstract
  • In this paper we present a detailed study of the intersubband absorption occurring between electron states confined in strained Ge multi-quantum wells as a function of the temperature. The high structural quality of the samples is reflected by the very narrow absorption line-shape constant with temperature. We observe a temperature driven charge transfer occurring between the ground and the first excited subband which, in turn, induces a change in the depolarization shift and consequently in the energy of the absorbance peak. The experimental observations are well accounted for by a multi-valley k ?p model. (literal)
Editore
Prodotto di
Autore CNR

Incoming links:


Autore CNR di
Prodotto
Editore di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
data.CNR.it