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Titolo:
FEMTOSECOND COHERENT SPECTROSCOPY OF ETCHED QUANTUM WIRES
Autore:
MAYER EJ; WHITE JO; SMITH GO; LAGE H; HEITMANN D; PLOOG K; KUHL J;
Indirizzi:
MAX PLANCK INST FESTKORPERFORSCH,HEISENBERGSTR 1 D-70506 STUTTGART GERMANY
Titolo Testata:
Physical review. B, Condensed matter
fascicolo: 4, volume: 49, anno: 1994,
pagine: 2993 - 2996
SICI:
0163-1829(1994)49:4<2993:FCSOEQ>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
EXCITONS; RELAXATION; SCATTERING; BEATS;
Tipo documento:
Note
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
16
Recensione:
Indirizzi per estratti:
Citazione:
E.J. Mayer et al., "FEMTOSECOND COHERENT SPECTROSCOPY OF ETCHED QUANTUM WIRES", Physical review. B, Condensed matter, 49(4), 1994, pp. 2993-2996

Abstract

We report measurements of the homogeneous linewidth of an excitonic resonance in a quantum wirer Transient time-integrated and time-resolved four-wave-mixing experiments are used to obtain the homogeneous linewidth by measuring the dephasing time. A biexponential decay is observed and attributed to the presence of free and localized excitons. The homogeneous linewidth for both species is measured as a function of temperature and excitation density. Quantum beats are observed due to interference between the m = 1 and m = 2 center-of-mass-quantized n = 1 heavy-hole exciton states.

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Documento generato il 27/11/20 alle ore 07:26:29