Dynamical nonlinearity in strained InGaAs (311)A sidewall quantum wires

D. Alderighi, M. Zamfirescu, A. Vinattieri, M. Gurioli, S. Sanguinetti, M. Povolotskyi, J. Gleize, A. Di Carlo, P. Lugli, R. Nötzel

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Abstract

Significant optical nonlinearity has been found in InGaAs (311)A sidewall quantum wires by means of time resolved photoluminescence measurements. A strong reverse quantum confined Stark effect has been observed and attributed to the dynamical screening of both the internal piezoelectric field and the Coulomb interaction between carriers. The time evolution of the quantum wire emission has been reproduced by means of self-consistent calculations that take into account excitonic effects, strain, and induced piezoelectric charges
Original languageEnglish
Pages (from-to)786-788
JournalApplied Physics Letters
Volume84
Issue number5
DOIs
Publication statusPublished - 2004

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