The dynamics of the nonlinear optical response of sidewall semiconductor quantum wires (QWR) grown on (311)A GaAs substrates was studied by time resolved photoluminescence (TRPL) measurements. A large dynamical quantum confined Stark effect (QCSE) was observed in the QWRs. The shift of the QWR optical transition was predicted to be the order of 22 meV. The results show that both the piezoelectric fields and electron-hole Coulomb interaction have to be considered in order to reproduce the experimental findings.
Dynamical nonlinearity in strained InGaAs (311)A sidewall quantum wires / D. ALDERIGHI; M. ZAMFIRESCU; A. VINATTIERI; M. GURIOLI; S. SANGUINETTI; M. POVOLOVSKYI; J. GLEIZE; A. DI CARLO; P; LUGLI; R. NOETZEL. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 84:(2004), pp. 786-788. [10.1063/1.1639504]
Dynamical nonlinearity in strained InGaAs (311)A sidewall quantum wires
VINATTIERI, ANNA;GURIOLI, MASSIMO;
2004
Abstract
The dynamics of the nonlinear optical response of sidewall semiconductor quantum wires (QWR) grown on (311)A GaAs substrates was studied by time resolved photoluminescence (TRPL) measurements. A large dynamical quantum confined Stark effect (QCSE) was observed in the QWRs. The shift of the QWR optical transition was predicted to be the order of 22 meV. The results show that both the piezoelectric fields and electron-hole Coulomb interaction have to be considered in order to reproduce the experimental findings.
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