http://www.cnr.it/ontology/cnr/individuo/prodotto/ID1528
Cavity polaritons from excited-subband transitions (Articolo in rivista)
- Type
- Label
- Cavity polaritons from excited-subband transitions (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1063/1.2823584 (literal)
- Alternative label
Anappara, AA; Tredicucci, A; Beltram, F; Biasiol, G; Sorba, L; De Liberato, S; Ciuti, C (2007)
Cavity polaritons from excited-subband transitions
in Applied physics letters
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Anappara, AA; Tredicucci, A; Beltram, F; Biasiol, G; Sorba, L; De Liberato, S; Ciuti, C (literal)
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- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1. NEST CNR INFM, I-56126 Pisa, Italy
2. Scuola Normale Super Pisa, I-56126 Pisa, Italy
3. CNR INFM, Lab Nazl TASC, I-34012 Trieste, Italy
4. Univ Paris Diderot 7, Lab Mat & Phenomenes Quant, F-75013 Paris, France
5. CNRS, UMR 7162, F-75013 Paris, France (literal)
- Titolo
- Cavity polaritons from excited-subband transitions (literal)
- Abstract
- We report on the coupling of optical transitions between excited conduction subbands in GaAs/AlGaAs heterostructures with the resonant photonic mode of a semiconductor microcavity. The coupling is found to increase with temperature, owing to the thermal excitation of carriers from the ground subband and, thanks to the large dipole-matrix element of the excited-state transition, a record splitting of 60 meV is shown in the room-temperature reflectance. The importance of translating the angle-dependent spectra into energy-wavevector dispersion when the coupling is so large is highlighted, and a theoretical fitting procedure is used to extract the value of the vacuum-field Rabi energy. (literal)
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